I own this unit and I run it in a 120sq. foot room. I have chronic asthma where drugs barely help. Running this at its highest speed in a small space has made a major difference in my health . Also, it has a light that indicates when the air is not clean. I thought it was a gimmick but it really works. The other day it turned red but I could not smell or notice anything. I went to my window and sniffed and I could smell cigarette smoke from my neighbor who sits on her balcony and smokes. I closed the window and after a while it went back to blue. Really good stuff and although expensive I highly recommend it. I have had mine for at least 4 years and it is still going strong with zero issues.
Dude I'm so glad it's helped with your chronic asthma! I've felt a little off in my apartment ever since I've moved here and I'm hoping the air quality could be the issue (I also have asthma).
Buying multiple units might be cheaper up front but the additional energy and filter replacement cost of running multiple units would ultimately cost much more in the long run than a single unit would.
He stated in this video that the Coway Airmega 400S draws 60 watts of electricity and the Coway Mighty draws 70 watts, so using 2 Coway Mighty's would draw more than double the wattage drawn by the Coway Airmega 400S, and you incur the additional filter costs.
Moreover, the noise of the Mighty is louder (24 ~ 53 dB) than the 400 (22 ~ 52 dB). Maybe it’s a small difference but not if you multiplied the number of Mighty. Also, bigger fan will make less noise (the range sits more in low frequencies too).
I don't think this is quite accurate. Having multiple units also allows you to run at much lower fan speeds. Instead of having one expensive unit overpromising and struggling to care for a large room or two small rooms, you have two small units handling much smaller areas with ease and at much lower wattage draws.
currently as of today, amazon is selling this unit 400s for $374 dollars. running 2 - 70 watt units verses 1 - 60 watt unit. Plus added filter cost. This is currently the better deal
I have two of the Coway smaller units and they are fantastic, having gotten us through several years of terrible summer forest fire pollution seasons. If someone needs all of the volume that these units can handle, well these are the ones to buy.
I was having horrible shortness of breath, and a burning sensation frequently when breathing, after getting the air mega 400 I can breath SO MUCH BETTER. This thing catches so much dust even with the prefilter, I clean it every 6 or so days. Within that 6 days the prefilters collect so much, when I go outside to knock the dust off of it, it makes a huge dust cloud! The air indicator turned red when I first turned it on, and very soon after it felt like the air was literally lighter and easier to breath. And no, I don’t smoke😂
The initial purchasing cost is better value, but how about long term? You’ll be paying 2x-4x for filters because you need replacements for multiple units, does it still work out to be cheaper?
Really important that no one seems to mention is placement within the room. Also, in reality, you are not really cleaning a whole room, depending on size. you should move the unit around the room.. I have wok cooked 10 feet from my Winix,(C 545), only to not see the indicator light change to yellow or red. It is pretty simple, right? These rely on the air getting to them in various ways. drafts within the room or by the circulation fan within the unit moving air. Either method is not very efficient for "cleaning" the air. Ultimately for filtering air in a room you are going to have more than one purifier and set them at different levels (height). The notion of cleaning your whole living room/family room/ kitchen with one unit is a complete joke. Unless you manually move the unit around...
Some things are not accounted in the video when comparing having two Mightys against one Airmega 400. Power efficiency. The Airmega 400 peaks at 66 watts while two Mightys would peak at 154 watts. If ran all year long, at an energy price of $0.09/kWh (national average in USA at this current time), that's $69 per year more to run two Mightys. You run past the break-even point before year 4. In my area, where energy is $0.13/kWh, the breakeven point is about 2.5 years. Yearly filter replacement changes these timelines very little. So, because of the power efficiency difference, the gap between these prices shrinks quickly, and even flips given enough time. Frankly, the value score should be higher for a single Airmega 400 vs two Mightys. To score it lower is myopic. Noise level. One Airmega 400 gets up to 52 dB, while two Mightys would get to 56 dB. Since 10^(-52/10) / 10^(-56/10) ~= 2.5, that means two Mightys are ~2.5 times louder than one Airmega 400. That's a huge difference!
the problem is 2 units are more practical. One in the living room and one in the bedroom to reduce allergens in the two rooms you are in most of the time will just flat out beat a single unit in the living room OR bedroom. 250cuft is probably overkill for most bedrooms
@@Fredmullegun True, but at that point it's really about the space you're working with. If it doesn't make sense to only have one, then why even compare 1v2?
Great review with excellently presented info; however you neglected to say that when you use two cheaper units, you also double the cost of filters for as long as you own them, thus eliminating the cost savings of a single 400S unit.
Love the objective review, I fully agree with what you said about multiple units, but something to really consider is noise! I actually splurged on the airmega proX, haven't received it yet, but solely based on the fact that according to the specs, at max speed it's only 46db, for over 500 cadr, similar units at that airflow from IQAir, BlueAir, Medify are much louder for their CFM, afaik the winix and mighty are also louder at their max speed than the ProX, so what you are paying a huge premium for is a single package with high airflow, lower power cost, and lower overall noise. Also presumably, larger filters have more surface area and therefore last longer, though they cost more. I'll be super miffed if they don't eventually sell the ProX filters as just the HEPA or Carbon by themselves, as I use a carbon cylinder+blower for VOCs anyways, much more pellets by weight than any of the hexagon filler filters.
@@joshuajovancarmonacruz7255 I did, I'm very happy with it, the unit is quite large, so that'd be the one downside I suppose, but performance is great, noise level is very low, the sensors and auto mode work well, and it moves tons of air, I verified it's max airflow with a cheap anemometer when I got it and it checks out at >500 cfm, I didn't think to check the low function, which is what it is on 99% of the time on auto unless I cook, before my cheap anemometer broke haha, so I'm really curious about more reviews. I've been happy with it, it was obviously expensive though, so still probably a poor value proposition unless you value low noise/high output.
Something you did not mention about the Coway Mighty & Winix 5500-2 compared to the Coway 400S is the area they cover in comparison. The Coway 400S is supposed to cover 1560 sq.ft. The Coway Mighty, 874 sq.ft. The Winix 5500-2, 360 sq.ft. That's a massive difference in coverage. For someone who wants to save space in their home, but also wants as much clean air as possible, The Coway 400S seems to be a no brainer even considering the price. Something else worth mentioning is the additional energy you would have to use in have two air purifying units active, and the maintenance of replacing the filters on multiple units.
Yeah, even though I agree the price is ridiculously high his suggestion to purchase two Winix just to get the equivalence to the Coway made no sense to me. I'd have to find ideal spaces to accommodate 2 machines that will draw more power and require 2x of maintenance and generate 2x more noise. Like bro what?! When I can just pay a little more and get an all in 1 machine.
The thing is that the filters are $120 for the coway, and $55 for the winix. That makes the long term costs about the same if you had 2 winix instead of the coway 400s. Considering it'd be equivalent air flow, I'd actually say 2 winix's would be better since your pulling air from 2 different points simultaneously, leading to a quicker overall cleaning performance, especially for long L shaped rooms.
Do these Air purifiers remove any dust particles from the air? I have a video studio and constantly seeing a lot of DUST falling on my black backdrops and wasting my time cleaning it up before every shot. If these air purifiers can clean even half of the dust it will be a great help for me. If anyone can help me with more information on dust removal capabilities of these purifiers?
Price aside, would you recommend the 300 or 400 for a space that is about 800 sq ft, semi-open concept (4-5 ft wide entries) between living, dining, kitchen?
@@consumer-analysis you are definitely the best reviewer out there. Keep up the good work! We will probably ending up buying Winix 5500-2 per your recommendation.
@@blankearth5840 good point you convince me I’ll edit my previous post then lol, I have the 300s Airmega coway purchased it 2 days ago and ordering now the levoit 600s and see which one is better 👍🏼
@@staceys1870 I ended up getting the 400s and i really can’t complaint at all, it was worth the investment worth every penny It did make a huge differences in our 900sq ft apartment we have it now for over 2 month and my son allergies has been reduced and more stuffy nose and we can notice the the clean air all day long 👍🏼 good luck you won’t be disappointed 🤗
To your point about running multiple Winix units with less CFM…does it really work out that way in real world use? Does running 2 lower CFM units in one room really produce a similar CADR as a single higher CFM unit? I ask as I’m on the fence between buying multiple Winix 5500-2’s for a 420 sq ft family room, vs something with more CFM’s like a blue air, air doctor, Coway, or Medify. I’ve owned a Winix 5300 for several years now and really love the build quality and maintenance cost of the Winix units, but can’t decide on which strategy is best for a truly effective ACH rate and really preventing airborne particulates from lingering too long before being filtered.
Great review but you only look at purchase price when you talk about value. That’s just not a fair evaluation. What about the cost of ownership including electricity and filters? What about warranty and durability as part of the value?
Just purchased the 400S. Was able to buy it while on sale for $358 and free shipping. Cannot hear the motor on low speed. Should filter most of my single story home. As it is brand new, I still don’t understand how it is able to draw air on such a ow speed. I keep it on the Smart mode. Not sure when or why you would want to default it to a higher speed.
Since this unit is actually more energy efficient than the Coway Mighty, drawing 60 watts of energy vs the Coway Mighty's 70 watts, running 2 Coway Mighty's would draw 140 watts of electricity versus 70 watts used by the Coway 400S. And you would also have the additional filter costs with more units.
It depends on which 2 smaller units you're talking about. Comparing the AirMega to something like the Mighty or Winix 5500-2, the AirMega uses twice as many filters as those smaller units. As such, replacing its filters cost about twice as much.
Did you measure the decibel at highest speed? The reason this unit most interested me was for the claim that it is under 52dB even at the highest setting which is much better than any other purifier that I've looked into but then I've heard a few reviews mention that it is very loud at the highest setting..?
Yes, I did. On high, it was measured at 67.8 dB. The noise output section of my written review for this unit covers this in more detail: www.consumeranalysis.com/guides/air-purifiers/coway-airmega-review/
@@consumer-analysis thank you for the response, I ended up getting one and it is indeed significantly louder than their claim, trying to decide if I want to return it. I don't know how accurate a phone app measurer is, but I was getting readings of about 72dB and it is louder than my other purifiers, even on their turbo settings. It is concerning to me that if at least one spec is so far off from what they list can anything else be trusted? It does seem to move a lot of air and is very quiet at the lowest setting but it's frustrating that the main selling point for me appears to be a flat out deception.
@@consumer-analysis thanks for your detailed analysis. I have a blue air 211+ and use it at its lowest setting in a small room (120SF). I purposely bought a large unit to be able to run it at its lowest fan setting because I'm really sensitive to noise. The Coway 400 and RabbitAir minusA2 both advertise quieter noise specs at just 22DB. Is the Coway the quietest in reality? And do you think the RabbitAir has an advantage in that it can be mounted against the wall (I also dislike that the 211+ has to be a few inches from the wall).
For your application, I would recommend the Coway AirMega 400. It's expensive, but it will do what you need it to do very effectively. For a table listing the measured noise output of all of the air purifiers I tested see this guide: www.consumeranalysis.com/guides/air-purifiers/quiet-air-purifier/
hello I'm trying to decide between a Austin air and the coway air mega. Any thoughts on this Consumer Analysis? I was about to order from Sylvane until the rep advised the Austin was the way to go in his opinion. any big differences between the 2? please reply soon if possible. thank you
If you're especially concerned about odors/VOCs I recommend the Austin (it has a much more substantial gas filter than the AirMega). If you're especially concerned about particle filtration I recommend the AirMega (it outputs at a higher CFM with the same particle filter type - HEPA - as the Austin).
@@ozzyosbourne5063 I just got the 400 I didn't get the 400s as I feel I didn't need the wifi or bluetooth. I feel it works well especially depending on the size of your room. the quality of the build is very nice and it looks good. the only thing I will say is it's a little bit loud but when I have it on for a while that doesn't even bother me. One last thing is I ordered mine directly from the company as when I checked amazon I wasn't really thrilled about ordering from them as shit comes damage too often from them and I don't have time for nonsense. the shipping from the company was relatively quick at about a week and no issues since I received it at all. hope this helps. good luck
Hey these reviews are awesome man! I'm curious as to how flexible CFM is though. If your CFM is low does that mean it will not scrub all your air, or just to a lesser degree? I am in a studio unit downtown that is about 5656 cubic feet. Do I really need to fork out for a massive ceiling mounted unit like some websites recommend? If I keep the windows closed most of the time does that reduce the amount of CFM I need to keep my air clean? Cheers!
"If your CFM is low does that mean it will not scrub all your air, or just to a lesser degree? " Just to a lesser degree. You don't need a massive ceiling mounted unit even for 5600 cubic feet. This unit (the AirMega 400) could work well for such a space though I think two 250 CFM units like the Winix 5500-2 or Coway Mighty are an even better option. You want to keep your windows closed at all times when running your air purifier.
@@consumer-analysis Excuse my ignorance, but what is the reason to keep windows closed when running an air purifier? I have the Cowry 400, not the S version. Thank you!
No, this is a pure HEPA unit that performs its filtering from a combination of extremely high airflow + a very good filter. The company does makes some models with ionizers, but they can be disabled AFAIK.
@@hailmkv02 See the beginning of the guide below for a detailed analysis of manufacturer specifications for area of coverage: www.consumeranalysis.com/guides/air-purifiers/best-air-purifier/
@@consumer-analysis Can't agree with you there. The Coway is using a blower fan instead of the conventional fan found on the other units. Blower fans are the same found on most central air conditioners . Also the Coway has two filtered inputs, which allows it to filter more air due to the more powerful blower fan. So yes, the Coway can filter a basement of 1,000 sq feet.
I like this unit a lot, but I have the same complaint with this that I do my Medify--making the carbon and HEPA filter into a single unit is wasteful because they can age at different speeds. My next unit will segregate the carbon from the HEPA filter. Like my Medify, I am guessing the carbon does a good job for a few months, but then becomes exhausted long before the HEPA filter itself needs replacement. It looks like the filters have a reasonable amount of carbon pellets in them, but it's not nearly as much carbon compared to say an AllerAir or a unit that uses mass carbon filtration, and it will be exhausted relatively quickly.
Shouldn't the energy efficiency alone make up for the price differences based on your electric costs? If a 5500-2 runs at 70watts where as this only hits sixty while almost performing twice as well... Seems to me that's about a 30 watts savings, around 250 kW savings or anywhere between $40-$70 savings a year.
What separates this from the others is the wifi. I can set this in the place I want it and it can be put on a schedule. I actually wish manufacturers would dumb down these and get rid of the soft button on and make it a hard switch. Most people just need a smart plug and a good air purifier. Set it to a schedule in smart things and be done with it. I have 4000 SQ ft house and I don't want to go room to room to turn on an air purifier. Or move one from room to room. It's an older house so it doesn't make sense to run ductwork and do a whole house system. A properly sized air purifier in each room set to a schedule sounds amazing to me. Why can't manufacturers see that?
They ran out in the stores and online was too costly so I just bought the filters, slapped it up in a plastic container with a mesh bag around it (put carbon pellets inside the bags)and added one of those window fans with air speed control already integrated. It actually seems to function better than our old air purifier that died. I really like this one too but the prices have skyrocketed. :( On the plus side now I can make my own purifiers for cheap lol.
This covers the square footage of my first floor but there’s one room that’s no doors but separated by a wall, would it be able to reach and clean that room or would you suggest and extra purifier
If air is able to move freely between the room you're describing and the room where the air purifier is located then you don't need an additional unit.
While the analyst in me says sure your numbers make sense but the practical side of me who does the maintenance and cleaning of the filters throughout the house.. No way I’d trade my unit just to add 2 in its place which now means more machines to keep clean and filters to purchase. No one wants to clutter their living room up with air purifiers as a means of decoration 😂.
I list all noise output data in individual written reviews: www.consumeranalysis.com/guides/air-purifiers/best-air-purifier/#reviews And in this guide: www.consumeranalysis.com/guides/air-purifiers/quiet-air-purifier/
It looks like a solid option. It was not available - or at least I didn't know about it - during my first round of testing though I do plan on testing it in the future.
@@consumer-analysis I have also researched Medify; their website is riddled with errors. For example, the MA-125 product manual states its "Room size: 63-108 sq. meters / 206-354 sq. feet" That's grossly incorrect. Its 678 to 1162.5 sq feet. There are other issues regarding the specs....
The Medify might be an excellent purifier, but you really need to dig deep into their lab results (ask for them if they are not published) and specifications, which need to be improved and clarified. So far my research has narrowed it down to Alen (lifetime warranty if you register and sign up for their discounted filter program) and Coway. 250/300/400 series. Still awaiting lab results back from Oransi and IQair. for cost, also look at the filters comparison.
These filters suck if you have them anywhere near smells. Like bacon grease. Then move that unit to the bedroom or somewhere else. The smell covers the HEPA filter but it still filters thru and then basically blows that smell for days. I had to turn my units off. Order new filters after 2 days of use. The smell is horrible. You can smell it on the filter. New they had no smell so I know it's from the bacon grease since two units did the exact same. But the one that wasn't near the kitchen is fine. I'm returning mine. Can't have these if Everytime you cook, you have to turn them off or replace filters
If you had that much bacon grease in the air I don't think any air purifier is going to handle it. That is what the exhaust fan above the stove is for. Some particular things are so explosive with fumes that I only do them outside, like searing mahi mahi fish. I've wondered about making temporary fume hood style contraption around the stove for that but never tried it. Or maybe an upgraded exhaust fan.
The recommended exchange rate is a minimum of 4 times a minute.. I never hear you talk about this? You're recommended air filters like the Conway, and the Winix 5500 in their perspective room sizes of about 350 ft², exchange the air about two times.. Basically to exchange the aerate of 4 to 5 time s to truly help allergy sufferers and asthma people You would need a unit like the one you're describing here in a room that was 350 ft² I guess I'm so confused about all of this.. But you hear people say there are some units like the ones you recommend that can do 700 ft² exchange the air one time per hour.. Why isn't that good enough.. Also confusing..
You are REALLY MISTAKEN regarding your one critique of the 300 & 400 Conway Airmega models. Due to my immune deficiency, I've researched high-end purifiers, and have reviewed the independent lab results from Coway, Alen and Oransi. The Airmega filters out (after 5 passes) 99.999% particles greater than .01 microns. Compare that to the Winix 5500-2 which is a standard HEPA filter with 99.97% with filtration of particles greater than 0.3 microns. Keep in mind that excludes ALL COVID particles, which range from 0.06 to 0.14 microns, which are filtered out by the Coway model.
You keep saying poor value and to just buy 2 x Winix 5500 but you would be using 140 watts versus 60 watts every month and you would have to pay an extra $100 annually for two sets of filters (this unit already includes two whenever you buy them) also this unit based on other tests online does a much better job at filtration than the Winix … you would need 4 Winix in a larger room to move the air Ike this one does. Stop thinking higher cost = poor value lol plus the convenience of only needing one unit for a larger room!
Good review, though do note that 500 CFM is not obtainable with two 250 CFM units. Since this is cubed, the 500 CFM moves four times the volume as 250 CFM.
One strong person can move 2 boxes/hour. Two less strong people can move 1 box an hour each. After 1 hour, both the single, strong person and the two less strong people have moved the same amount of boxes.
Consumer Analysis I was wrong initially you would require eight 250 CFM units to push the same amount of air as the 500 CFM unit. This is due to the fact these measurements are three dimensional. 2x(250x250x250) = 3,1250,000 =/= 500x500x500 = 1,250,000,000 8x(250x250x250) = 1,250,000,000 == 500x500x500 = 1,250,000,000
You repeat yourself way way too much.. which end up with a 10 minutes video while not even describing all features.. Like you didn’t talk at all about the sleep feature where I would have been interested to know if it was automatic or manual, since there is a light sensor.
Thank you for the feedback. I've started scripting videos which helps a lot to reduce redundancy. I talk about all the features of AirMega air purifiers in detail in my written review: www.consumeranalysis.com/guides/air-purifiers/coway-airmega-review/
I believe the 400 series has the automatic sleep feature the 300 does not , just got mine yesterday and I was wondering if they do have a child safety feature since my kids never leave the unit alone ever since haha
I own this unit and I run it in a 120sq. foot room. I have chronic asthma where drugs barely help. Running this at its highest speed in a small space has made a major difference in my health . Also, it has a light that indicates when the air is not clean. I thought it was a gimmick but it really works. The other day it turned red but I could not smell or notice anything. I went to my window and sniffed and I could smell cigarette smoke from my neighbor who sits on her balcony and smokes. I closed the window and after a while it went back to blue. Really good stuff and although expensive I highly recommend it. I have had mine for at least 4 years and it is still going strong with zero issues.
Dude I'm so glad it's helped with your chronic asthma! I've felt a little off in my apartment ever since I've moved here and I'm hoping the air quality could be the issue (I also have asthma).
Buying multiple units might be cheaper up front but the additional energy and filter replacement cost of running multiple units would ultimately cost much more in the long run than a single unit would.
He stated in this video that the Coway Airmega 400S draws 60 watts of electricity and the Coway Mighty draws 70 watts, so using 2 Coway Mighty's would draw more than double the wattage drawn by the Coway Airmega 400S, and you incur the additional filter costs.
Moreover, the noise of the Mighty is louder (24 ~ 53 dB) than the 400 (22 ~ 52 dB). Maybe it’s a small difference but not if you multiplied the number of Mighty. Also, bigger fan will make less noise (the range sits more in low frequencies too).
I don't think this is quite accurate. Having multiple units also allows you to run at much lower fan speeds. Instead of having one expensive unit overpromising and struggling to care for a large room or two small rooms, you have two small units handling much smaller areas with ease and at much lower wattage draws.
@@dh2392 at 12c per kwh, The 80w difference is about 84$ per year.
You really have a great channel. True pros and cons.
currently as of today, amazon is selling this unit 400s for $374 dollars. running 2 - 70 watt units verses 1 - 60 watt unit. Plus added filter cost. This is currently the better deal
I have two of the Coway smaller units and they are fantastic, having gotten us through several years of terrible summer forest fire pollution seasons. If someone needs all of the volume that these units can handle, well these are the ones to buy.
I was having horrible shortness of breath, and a burning sensation frequently when breathing, after getting the air mega 400 I can breath SO MUCH BETTER. This thing catches so much dust even with the prefilter, I clean it every 6 or so days. Within that 6 days the prefilters collect so much, when I go outside to knock the dust off of it, it makes a huge dust cloud! The air indicator turned red when I first turned it on, and very soon after it felt like the air was literally lighter and easier to breath. And no, I don’t smoke😂
I hope this unit does not use ionizer and Ozone free. That shit causes cancer.
The initial purchasing cost is better value, but how about long term? You’ll be paying 2x-4x for filters because you need replacements for multiple units, does it still work out to be cheaper?
Great review. Very helpful!
Very wise recommendation on going with several smaller units rather than one large unit.
Thank you so much! This was very simple and easy to understand. I went with your tip and got 2 Winix 5500. Thank you!
man the prices on all of these units even the winix have gone up 2 fold.
Expensive , but looks a million times better than the winex and other preferred brand. I’d pay the premium for the CFm but also the esthetic .
Really important that no one seems to mention is placement within the room. Also, in reality, you are not really cleaning a whole room, depending on size. you should move the unit around the room.. I have wok cooked 10 feet from my Winix,(C 545), only to not see the indicator light change to yellow or red. It is pretty simple, right? These rely on the air getting to them in various ways. drafts within the room or by the circulation fan within the unit moving air. Either method is not very efficient for "cleaning" the air. Ultimately for filtering air in a room you are going to have more than one purifier and set them at different levels (height). The notion of cleaning your whole living room/family room/ kitchen with one unit is a complete joke. Unless you manually move the unit around...
Some things are not accounted in the video when comparing having two Mightys against one Airmega 400.
Power efficiency. The Airmega 400 peaks at 66 watts while two Mightys would peak at 154 watts. If ran all year long, at an energy price of $0.09/kWh (national average in USA at this current time), that's $69 per year more to run two Mightys. You run past the break-even point before year 4. In my area, where energy is $0.13/kWh, the breakeven point is about 2.5 years. Yearly filter replacement changes these timelines very little. So, because of the power efficiency difference, the gap between these prices shrinks quickly, and even flips given enough time. Frankly, the value score should be higher for a single Airmega 400 vs two Mightys. To score it lower is myopic.
Noise level. One Airmega 400 gets up to 52 dB, while two Mightys would get to 56 dB. Since 10^(-52/10) / 10^(-56/10) ~= 2.5, that means two Mightys are ~2.5 times louder than one Airmega 400. That's a huge difference!
the problem is 2 units are more practical. One in the living room and one in the bedroom to reduce allergens in the two rooms you are in most of the time will just flat out beat a single unit in the living room OR bedroom. 250cuft is probably overkill for most bedrooms
@@Fredmullegun True, but at that point it's really about the space you're working with. If it doesn't make sense to only have one, then why even compare 1v2?
Great review with excellently presented info; however you neglected to say that when you use two cheaper units, you also double the cost of filters for as long as you own them, thus eliminating the cost savings of a single 400S unit.
Love the objective review, I fully agree with what you said about multiple units, but something to really consider is noise! I actually splurged on the airmega proX, haven't received it yet, but solely based on the fact that according to the specs, at max speed it's only 46db, for over 500 cadr, similar units at that airflow from IQAir, BlueAir, Medify are much louder for their CFM, afaik the winix and mighty are also louder at their max speed than the ProX, so what you are paying a huge premium for is a single package with high airflow, lower power cost, and lower overall noise. Also presumably, larger filters have more surface area and therefore last longer, though they cost more. I'll be super miffed if they don't eventually sell the ProX filters as just the HEPA or Carbon by themselves, as I use a carbon cylinder+blower for VOCs anyways, much more pellets by weight than any of the hexagon filler filters.
Did you receive your pro X? Is it as good as his specs?
@@joshuajovancarmonacruz7255 I did, I'm very happy with it, the unit is quite large, so that'd be the one downside I suppose, but performance is great, noise level is very low, the sensors and auto mode work well, and it moves tons of air, I verified it's max airflow with a cheap anemometer when I got it and it checks out at >500 cfm, I didn't think to check the low function, which is what it is on 99% of the time on auto unless I cook, before my cheap anemometer broke haha, so I'm really curious about more reviews. I've been happy with it, it was obviously expensive though, so still probably a poor value proposition unless you value low noise/high output.
Something you did not mention about the Coway Mighty & Winix 5500-2 compared to the Coway 400S is the area they cover in comparison. The Coway 400S is supposed to cover 1560 sq.ft. The Coway Mighty, 874 sq.ft. The Winix 5500-2, 360 sq.ft. That's a massive difference in coverage. For someone who wants to save space in their home, but also wants as much clean air as possible, The Coway 400S seems to be a no brainer even considering the price. Something else worth mentioning is the additional energy you would have to use in have two air purifying units active, and the maintenance of replacing the filters on multiple units.
Yeah, even though I agree the price is ridiculously high his suggestion to purchase two Winix just to get the equivalence to the Coway made no sense to me. I'd have to find ideal spaces to accommodate 2 machines that will draw more power and require 2x of maintenance and generate 2x more noise. Like bro what?! When I can just pay a little more and get an all in 1 machine.
The thing is that the filters are $120 for the coway, and $55 for the winix. That makes the long term costs about the same if you had 2 winix instead of the coway 400s. Considering it'd be equivalent air flow, I'd actually say 2 winix's would be better since your pulling air from 2 different points simultaneously, leading to a quicker overall cleaning performance, especially for long L shaped rooms.
Winix is not good. Failed on me in two years and was never great at filtering out dust or smells.
Better technology has a price. Great review, thanks!
How often do you need to change the filter?
Do these Air purifiers remove any dust particles from the air? I have a video studio and constantly seeing a lot of DUST falling on my black backdrops and wasting my time cleaning it up before every shot. If these air purifiers can clean even half of the dust it will be a great help for me. If anyone can help me with more information on dust removal capabilities of these purifiers?
this one is good for one station nail acrylic?
Did you measure power draw at low and medium settings? I wonder how much it draws
Price aside, would you recommend the 300 or 400 for a space that is about 800 sq ft, semi-open concept (4-5 ft wide entries) between living, dining, kitchen?
Do you run these 24/7? Where do you put the unit?
Have you tested the PuroAir Hepa14?
Does this mean that you have to buy 2 set of filters replacement in this unit?
You have to buy two filters - one for each side of the air purifier. They are usually sold together as one "filter set".
@@consumer-analysis you are definitely the best reviewer out there. Keep up the good work! We will probably ending up buying Winix 5500-2 per your recommendation.
Is this good for VOC's?
does the 400s unit go into smart mode automatacly when turned on
Does anyone know if the prox has any ionic components in it?
Well I’m glad I went with my Winix 5500-2 👍🏻
Hope you made the right decision 👍🏼🎊
@@costantineyoussif6679 just to check out other air purifiers and compare
@@blankearth5840 good point you convince me I’ll edit my previous post then lol, I have the 300s Airmega coway purchased it 2 days ago and ordering now the levoit 600s and see which one is better 👍🏼
@@costantineyoussif6679 Which one did you like better? I am looking to buy a second purifier as I do have the Cowry 400. It's very good.
@@staceys1870 I ended up getting the 400s and i really can’t complaint at all, it was worth the investment worth every penny It did make a huge differences in our 900sq ft apartment we have it now for over 2 month and my son allergies has been reduced and more stuffy nose and we can notice the the clean air all day long 👍🏼 good luck you won’t be disappointed 🤗
To your point about running multiple Winix units with less CFM…does it really work out that way in real world use? Does running 2 lower CFM units in one room really produce a similar CADR as a single higher CFM unit? I ask as I’m on the fence between buying multiple Winix 5500-2’s for a 420 sq ft family room, vs something with more CFM’s like a blue air, air doctor, Coway, or Medify. I’ve owned a Winix 5300 for several years now and really love the build quality and maintenance cost of the Winix units, but can’t decide on which strategy is best for a truly effective ACH rate and really preventing airborne particulates from lingering too long before being filtered.
What's is the best "ozone free air purifier " for large room?
Great review but you only look at purchase price when you talk about value. That’s just not a fair evaluation. What about the cost of ownership including electricity and filters? What about warranty and durability as part of the value?
Excellent review AND advice! thank you.
You're welcome!
Mine sometimes makes a random buzzing noise that lasts a second or so…I want to know what the issue is.
Can you please make a review on the samsung cube?
Just purchased the 400S. Was able to buy it while on sale for $358 and free shipping. Cannot hear the motor on low speed. Should filter most of my single story home. As it is brand new, I still don’t understand how it is able to draw air on such a ow speed. I keep it on the Smart mode. Not sure when or why you would want to default it to a higher speed.
Is airmega 400 aham certified?
This model is what we need in New Delhi India where aqi has reached more than 1100
Since this unit is actually more energy efficient than the Coway Mighty, drawing 60 watts of energy vs the Coway Mighty's 70 watts, running 2 Coway Mighty's would draw 140 watts of electricity versus 70 watts used by the Coway 400S. And you would also have the additional filter costs with more units.
Watching this in 2022. Prices have changed… a lot.
Wouldn't the cost of running and changing filters in 2 smaller units cost more in the long run than running and maintaining one large, pricier unit?
It depends on which 2 smaller units you're talking about. Comparing the AirMega to something like the Mighty or Winix 5500-2, the AirMega uses twice as many filters as those smaller units. As such, replacing its filters cost about twice as much.
Did you measure the decibel at highest speed? The reason this unit most interested me was for the claim that it is under 52dB even at the highest setting which is much better than any other purifier that I've looked into but then I've heard a few reviews mention that it is very loud at the highest setting..?
Yes, I did. On high, it was measured at 67.8 dB. The noise output section of my written review for this unit covers this in more detail: www.consumeranalysis.com/guides/air-purifiers/coway-airmega-review/
@@consumer-analysis thank you for the response, I ended up getting one and it is indeed significantly louder than their claim, trying to decide if I want to return it. I don't know how accurate a phone app measurer is, but I was getting readings of about 72dB and it is louder than my other purifiers, even on their turbo settings. It is concerning to me that if at least one spec is so far off from what they list can anything else be trusted? It does seem to move a lot of air and is very quiet at the lowest setting but it's frustrating that the main selling point for me appears to be a flat out deception.
@@consumer-analysis thanks for your detailed analysis. I have a blue air 211+ and use it at its lowest setting in a small room (120SF). I purposely bought a large unit to be able to run it at its lowest fan setting because I'm really sensitive to noise. The Coway 400 and RabbitAir minusA2 both advertise quieter noise specs at just 22DB. Is the Coway the quietest in reality? And do you think the RabbitAir has an advantage in that it can be mounted against the wall (I also dislike that the 211+ has to be a few inches from the wall).
Question.... I have a home recording studio. Which air purifier is the most effective AND the most quietest?
For your application, I would recommend the Coway AirMega 400. It's expensive, but it will do what you need it to do very effectively. For a table listing the measured noise output of all of the air purifiers I tested see this guide: www.consumeranalysis.com/guides/air-purifiers/quiet-air-purifier/
@@consumer-analysis Will do!! Thanks a million bro!!!
hello I'm trying to decide between a Austin air and the coway air mega. Any thoughts on this Consumer Analysis? I was about to order from Sylvane until the rep advised the Austin was the way to go in his opinion. any big differences between the 2? please reply soon if possible. thank you
If you're especially concerned about odors/VOCs I recommend the Austin (it has a much more substantial gas filter than the AirMega). If you're especially concerned about particle filtration I recommend the AirMega (it outputs at a higher CFM with the same particle filter type - HEPA - as the Austin).
@@consumer-analysis thank you for your reply I was just about to order today. PERFECT TIMING!!!
@@jasontaylor2237 You're welcome! Glad I could help!
@@jasontaylor2237 which one did you end up getting? How did it work out for you? I need something for my secere allergies.
@@ozzyosbourne5063 I just got the 400 I didn't get the 400s as I feel I didn't need the wifi or bluetooth. I feel it works well especially depending on the size of your room. the quality of the build is very nice and it looks good. the only thing I will say is it's a little bit loud but when I have it on for a while that doesn't even bother me. One last thing is I ordered mine directly from the company as when I checked amazon I wasn't really thrilled about ordering from them as shit comes damage too often from them and I don't have time for nonsense. the shipping from the company was relatively quick at about a week and no issues since I received it at all. hope this helps. good luck
This channel is fucking great
Agree.
Hey these reviews are awesome man!
I'm curious as to how flexible CFM is though. If your CFM is low does that mean it will not scrub all your air, or just to a lesser degree?
I am in a studio unit downtown that is about 5656 cubic feet.
Do I really need to fork out for a massive ceiling mounted unit like some websites recommend? If I keep the windows closed most of the time does that reduce the amount of CFM I need to keep my air clean?
Cheers!
"If your CFM is low does that mean it will not scrub all your air, or just to a lesser degree? "
Just to a lesser degree.
You don't need a massive ceiling mounted unit even for 5600 cubic feet. This unit (the AirMega 400) could work well for such a space though I think two 250 CFM units like the Winix 5500-2 or Coway Mighty are an even better option.
You want to keep your windows closed at all times when running your air purifier.
@@consumer-analysis Excuse my ignorance, but what is the reason to keep windows closed when running an air purifier? I have the Cowry 400, not the S version. Thank you!
Does this air purifier generate ozone? (i.e., is it an “ozone generator”?).
No, this is a pure HEPA unit that performs its filtering from a combination of extremely high airflow + a very good filter. The company does makes some models with ionizers, but they can be disabled AFAIK.
Question: can the 400 be used an entire, small house of 1600 sf? Thanks in advance.
In general, these air filters can only filter the air they have access to.
Unless your house is 1 room, this might be difficult.
Does ceiling height matter? 10 feet ceiling height 450 square feet family bedroom
Should this work well in a basement with about 1,000 sq feet?
It will work to a certain extent though not very well. I would not recommend these units for any space much larger than 300 sq. ft.
@@consumer-analysis what? 300 @1,250+sq ft and 400 @1,600 sq ft. are you saying these aren't true?
@@hailmkv02 See the beginning of the guide below for a detailed analysis of manufacturer specifications for area of coverage: www.consumeranalysis.com/guides/air-purifiers/best-air-purifier/
@@consumer-analysis Can't agree with you there. The Coway is using a blower fan instead of the conventional fan found on the other units. Blower fans are the same found on most central air conditioners . Also the Coway has two filtered inputs, which allows it to filter more air due to the more powerful blower fan. So yes, the Coway can filter a basement of 1,000 sq feet.
I like this unit a lot, but I have the same complaint with this that I do my Medify--making the carbon and HEPA filter into a single unit is wasteful because they can age at different speeds. My next unit will segregate the carbon from the HEPA filter. Like my Medify, I am guessing the carbon does a good job for a few months, but then becomes exhausted long before the HEPA filter itself needs replacement. It looks like the filters have a reasonable amount of carbon pellets in them, but it's not nearly as much carbon compared to say an AllerAir or a unit that uses mass carbon filtration, and it will be exhausted relatively quickly.
On sale now for $270, a steal !!!
Does using two air purifier save money? Isn’t it inconveinent to use two air purifier?
Shouldn't the energy efficiency alone make up for the price differences based on your electric costs? If a 5500-2 runs at 70watts where as this only hits sixty while almost performing twice as well... Seems to me that's about a 30 watts savings, around 250 kW savings or anywhere between $40-$70 savings a year.
these are on sale for half off on amazon rn, they're probably about to come out with a new model
Multiple units = multiple power use. Power use is more important than price.
What separates this from the others is the wifi. I can set this in the place I want it and it can be put on a schedule. I actually wish manufacturers would dumb down these and get rid of the soft button on and make it a hard switch. Most people just need a smart plug and a good air purifier. Set it to a schedule in smart things and be done with it. I have 4000 SQ ft house and I don't want to go room to room to turn on an air purifier. Or move one from room to room. It's an older house so it doesn't make sense to run ductwork and do a whole house system. A properly sized air purifier in each room set to a schedule sounds amazing to me. Why can't manufacturers see that?
They ran out in the stores and online was too costly so I just bought the filters, slapped it up in a plastic container with a mesh bag around it (put carbon pellets inside the bags)and added one of those window fans with air speed control already integrated. It actually seems to function better than our old air purifier that died. I really like this one too but the prices have skyrocketed. :( On the plus side now I can make my own purifiers for cheap lol.
This covers the square footage of my first floor but there’s one room that’s no doors but separated by a wall, would it be able to reach and clean that room or would you suggest and extra purifier
If air is able to move freely between the room you're describing and the room where the air purifier is located then you don't need an additional unit.
The million dollar question. Ionizer enabled on this unit or not ? I don't want an Ionizer.
What do you think about these new HEPA filters being fiberglass?
these filters contain fiberglass?
Does this model come with a pre-filter?
Yes, it comes with two washable mesh pre-filters - one on each side of the air purifier.
While the analyst in me says sure your numbers make sense but the practical side of me who does the maintenance and cleaning of the filters throughout the house.. No way I’d trade my unit just to add 2 in its place which now means more machines to keep clean and filters to purchase. No one wants to clutter their living room up with air purifiers as a means of decoration 😂.
I would with multiple Dyson air purifiers, if only they cleaned better and weren’t so loud
if the price is $350, would you still consider the cost is one of the downside?
Hello, fellow SlickDealer!
Mentions noise output but no decibel data? Fail.
I list all noise output data in individual written reviews:
www.consumeranalysis.com/guides/air-purifiers/best-air-purifier/#reviews
And in this guide:
www.consumeranalysis.com/guides/air-purifiers/quiet-air-purifier/
How about Medify MA-112 V2.0? It has very high CADR and covers a huge area, but it is priced
It looks like a solid option. It was not available - or at least I didn't know about it - during my first round of testing though I do plan on testing it in the future.
@@consumer-analysis I have also researched Medify; their website is riddled with errors. For example, the MA-125 product manual states its "Room size: 63-108 sq. meters / 206-354 sq. feet" That's grossly incorrect. Its 678 to 1162.5 sq feet. There are other issues regarding the specs....
The Medify might be an excellent purifier, but you really need to dig deep into their lab results (ask for them if they are not published) and specifications, which need to be improved and clarified. So far my research has narrowed it down to Alen (lifetime warranty if you register and sign up for their discounted filter program) and Coway. 250/300/400 series. Still awaiting lab results back from Oransi and IQair. for cost, also look at the filters comparison.
@@pamelaeells9477 Pam, did you ever get the lab results back from Oransi and IQair? Thank you!
These filters suck if you have them anywhere near smells. Like bacon grease. Then move that unit to the bedroom or somewhere else. The smell covers the HEPA filter but it still filters thru and then basically blows that smell for days. I had to turn my units off. Order new filters after 2 days of use. The smell is horrible. You can smell it on the filter. New they had no smell so I know it's from the bacon grease since two units did the exact same. But the one that wasn't near the kitchen is fine. I'm returning mine. Can't have these if Everytime you cook, you have to turn them off or replace filters
If you had that much bacon grease in the air I don't think any air purifier is going to handle it. That is what the exhaust fan above the stove is for. Some particular things are so explosive with fumes that I only do them outside, like searing mahi mahi fish. I've wondered about making temporary fume hood style contraption around the stove for that but never tried it. Or maybe an upgraded exhaust fan.
The recommended exchange rate is a minimum of 4 times a minute..
I never hear you talk about this?
You're recommended air filters like the Conway, and the Winix 5500 in their perspective room sizes of about 350 ft², exchange the air about two times..
Basically to exchange the aerate of 4 to 5 time s to truly help allergy sufferers and asthma people You would need a unit like the one you're describing here in a room that was 350 ft²
I guess I'm so confused about all of this..
But you hear people say there are some units like the ones you recommend that can do 700 ft² exchange the air one time per hour..
Why isn't that good enough..
Also confusing..
You are REALLY MISTAKEN regarding your one critique of the 300 & 400 Conway Airmega models. Due to my immune deficiency, I've researched high-end purifiers, and have reviewed the independent lab results from Coway, Alen and Oransi. The Airmega filters out (after 5 passes) 99.999% particles greater than .01 microns. Compare that to the Winix 5500-2 which is a standard HEPA filter with 99.97% with filtration of particles greater than 0.3 microns. Keep in mind that excludes ALL COVID particles, which range from 0.06 to 0.14 microns, which are filtered out by the Coway model.
You keep saying poor value and to just buy 2 x Winix 5500 but you would be using 140 watts versus 60 watts every month and you would have to pay an extra $100 annually for two sets of filters (this unit already includes two whenever you buy them) also this unit based on other tests online does a much better job at filtration than the Winix … you would need 4 Winix in a larger room to move the air Ike this one does. Stop thinking higher cost = poor value lol plus the convenience of only needing one unit for a larger room!
My Coway worked great for about eight months then stopped sensing. Coway support is worthless.
Good review, though do note that 500 CFM is not obtainable with two 250 CFM units. Since this is cubed, the 500 CFM moves four times the volume as 250 CFM.
Would you mind expanding on your math here? I don't follow the reasoning.
One strong person can move 2 boxes/hour. Two less strong people can move 1 box an hour each. After 1 hour, both the single, strong person and the two less strong people have moved the same amount of boxes.
It's cubed but only draws air from two sides, not four. Nice try.
Consumer Analysis www.khanacademy.org/math/basic-geo/basic-geo-volume-sa/volume-with-fractions/v/volume-of-a-rectangular-prism-with-fractional-cubes
Consumer Analysis
I was wrong initially you would require eight 250 CFM units to push the same amount of air as the 500 CFM unit. This is due to the fact these measurements are three dimensional.
2x(250x250x250) = 3,1250,000
=/=
500x500x500 = 1,250,000,000
8x(250x250x250) = 1,250,000,000
==
500x500x500 = 1,250,000,000
You repeat yourself way way too much.. which end up with a 10 minutes video while not even describing all features..
Like you didn’t talk at all about the sleep feature where I would have been interested to know if it was automatic or manual, since there is a light sensor.
Thank you for the feedback. I've started scripting videos which helps a lot to reduce redundancy.
I talk about all the features of AirMega air purifiers in detail in my written review:
www.consumeranalysis.com/guides/air-purifiers/coway-airmega-review/
I believe the 400 series has the automatic sleep feature the 300 does not , just got mine yesterday and I was wondering if they do have a child safety feature since my kids never leave the unit alone ever since haha
I dont understand how tall is it with the feet removed tell me please
what