Dirty N95 Mask under the Microscope
ฝัง
- เผยแพร่เมื่อ 5 ก.ย. 2024
- Microscopic video footage of a clean and a dirty N95 mask under the microscope.
Cultures were grown on tryptic soy blood agar at 36 degrees Celsius for 48 hours.
Camera - Nikon D3300
Microscopes -
Leica ATC 2000
Wolfe Stereomicroscope (10x Magnification)
Microscope magnification of each shot is shown in the bottom right hand corner.
Music by Sci-inspi
Apple music: / dirty-n95-mask-single
Spotify: open.spotify.c...
Donate to support my channel: www.paypal.com...
References
1. Larsen, Gregory S., Cheng, Yongqiang, Daemen, Luke L., Lamichhane, Tej N., Hensley, Dale K., Hong, Kunlun, Meyer, Harry M., Monaco, Steven J., Levine, Alan M., Lee, Richard J., Betters, Emma, Sitzlar, Kim, Heineman, Jesse, West, Justin, Lloyd, Peter, Kunc, Vlastimil, Love, Lonnie, Theodore, Merlin, and Paranthaman, Mariappan Parans. Polymer, Additives, and Processing Effects on N95 Filter Performance. United States: N. p., 2021. Web. doi:10.1021/acsapm.0c01294.
2. Adanur S, Jayswal A. Filtration mechanisms and manufacturing methods of face masks: An overview. Journal of Industrial Textiles. December 2020. doi:10.1177/1528083720980169
3. Taslim Ur Rashid, Sadia Sharmeen, and Shanta Biswas. Effectiveness of N95 Masks against SARS-CoV-2: Performance Efficiency, Concerns, and Future Directions. ACS Chemical Health & Safety 2022 29 (2), 135-164
DOI: 10.1021/acs.chas.1c00016
4. William G. Lindsley, Francoise M. Blachere, Brandon F. Law, Donald H. Beezhold & John D. Noti (2021) Efficacy of face masks, neck gaiters and face shields for reducing the expulsion of simulated cough-generated aerosols, Aerosol Science and Technology, 55:4, 449-457, DOI: 10.1080/02786826.2020.1862409
5.Leggett, Helen C et al. “Mechanisms of pathogenesis, infective dose and virulence in human parasites.” PLoS pathogens vol. 8,2 (2012): e1002512. doi:10.1371/journal.ppat.1002512
6.Brooks JT, Butler JC. Effectiveness of Mask Wearing to Control Community Spread of SARS-CoV-2. JAMA. 2021;325(10):998-999. doi:10.1001/jama.2021.1505
7.Yim, Wonjun et al. “KN95 and N95 Respirators Retain Filtration Efficiency despite a Loss of Dipole Charge during Decontamination.” ACS applied materials & interfaces vol. 12,49 (2020): 54473-54480. doi:10.1021/acsami.0c17333
![🎤 จับฉลากร้องเพลง x P’ #XXSIVK [EP.1] (2/2) เพื่อนจับได้คำไหน..ต้องร้องคำนั้น เริ่ม! 💓🎶 #MXFRUIT](http://i.ytimg.com/vi/1bJvMJXmeS4/mqdefault.jpg)
The fact that the music is also created by you is really awesome.
Yet hosted on two unethically proprietary platforms. I was hoping it'd be CC0 or similar.
It's a delicious song, but has lost a broader, deeper functionality.
@@Nohbdy_Ahtall yeah I tasted it its more savory than sweet but in a sour kinda way yaknow?
😂 wtf are yall talking about tasting a song
@@los3r426 how to taste like you did ?
@@ilyes8000 It's yummie what is there to not understand
Interesting. Can you also check what P3 particulate filters look like, after being used in a dusty environment, say, a welding shop. I want to see what size and shape the metallic and nonmetallic particles have.
That would be interesting
3:53 a ✓¡®u$ is thousand times smaller than the smallest speck we can see here. It won't filter bacteria, only dust. Imagine believing it will filter out ✓¡®u$€$. This guy ¡$ either a l¡@® or fv©|
Nerd
@@monsoon9847 It's almost as if this is a science channel
i would rather see oil particles/non oil particles comparison
I remember when covid hit and there was an N95 shortage on the covid unit, we had to don and doff the same mask over and over again. They told us we were allowed one mask per day, and we could reuse that one mask up to 4-5 days in a row as long as we put a regular mask on top of it. Looking at what’s grown on those Petri dishes, it really puts things into perspective.
And the number 1 thing an n95 mask says is DOES NOT PROTECT AGAINST COVID 19 🤣 right on the package.
@@freedomisntfree_44 k
@@freedomisntfree_44 literally because that's not the purpose of the masks. surgeons do NOT wear masks to protect themselves while doing surgery on someone. surgeons have been wearing masks for nearly a century now to protect the patients who's innards are exposed and vulnerable to otherwise benign bacteria that a surgeons breaths out, sneezed, coughs, etc. and they wear them for up to 16 hours or more.
@@freedomisntfree_44 that's for liability purposes... The most important thing with a respirator or mask is good fit/seal on your face. And even then there's no 100% guarantee you won't catch it. The whole point is to reduce your chances
@@JasonJia11 only thing that’ll reduce is dust inhalation 🤣
It's so strange to think that whatever the mask has caught, we usually breath in
When I went to school, after 6 hours of continuously wearing the mask, a dark layer would develop near the nose, it was disgusting
Nevertheless, awesome video!
And our uppers respiratory tracts usually filtered it by using cilia and mucus
@Patrick G try not to cut yourself on all those edges
@Patrick G Let me guess, a mask restricts your freedom of movement?
Probably just sweat and dirt. There’s naturally going to be some edgy anti-maskers, so it’s worth pointing out that studies have shown that they work, including for individuals (even when crowds are maskless) and in real-world conditions as opposed to laboratory ones. Bit pointless me saying it though, those people don’t really care about “logic” and “science”. They’re too busy breathing in the QAnon cult. I say we put them in some island and dunk diseases there, see what they think then.
@@yalewaller5721 it was mostly on the outside
Would love to see the condition of the mask in various stages, say after 1 "use" versus 5 "uses", maybe 40 hours would be better?
Absolutely loved the electrostatic demo, super cool! One minor caveat is that these masks actually filter the worst at 0.3 micrometers. Anything smaller easily collides with the fibers due to Brownian Motion, anything larger is collected through impaction or electrostatic attraction. That's why these masks are tested at 0.3 micrometers... if it gets a 95% at that size, it probably gets much more at any other size.
Some sizes are filtered out better than others. There are a lot of nuances so I try to be very general given the limitations of presenting information through text on a screen. That's why I also included references.
@@sci-inspi Thank you for your response! I do agree that there is a lot of nuance when I first looked into the field of aerosol science.
an n95 is only an 8 hour mask. you shouldn't be wearing it for 40.
@@datHDgameplay Where did you get the 8 hour figure from? Aaron Collin conducted filtration tests on 40 hour KF-94 masks and they only lost a few percentage points of filtration.
@@GearsDatPowerDaTubes I got it from the enclosed instructions. you see yellow it's an 8 hour mask. you see pink, it's a 40 hour mask. I wore p100 masks for the first few covid months. Those were 40 hour masks and have a pink label.
This man music is underrated
I want to play the video a second time just for the music
Tasteless animals
Is his music free to use?
And remember, at this level of magnification, viruses would STILL be invisible!
Jetzt hetzen Sie doch nicht mit Fakten! 😁
Like mosquitos through cattle fencing.
@@freakinccdevilleiv380 But the mosquito is attracted to the net and sticks to it.
The scientists aren't dumb
Glad to see you back! Really interesting stuff, and I have to say the music is getting better and better!
👏🏿
3:53 a ✓¡®u$ is thousand times smaller than the smallest speck we can see here. It won't filter bacteria, only dust. Imagine believing it will filter out ✓¡®u$€$. This guy ¡$ either a l¡@® or fv©|
It's annoying.
@@mariantreber8055 Alright Marian
i wonder why youtube and big pharma recommended this video to me
I shazammed the song for curiosity and the name is dirty n95 mash by sci inspi my respect for you is even more than before
People be wearing the same mask for months. As long as they get the illusion of safety
How do you know that? Did you take a poll? Masks do help. You are probably too dumb to understand how the science “be”. You are one sorry MF
My mom 🤦🏽♀️ even after I repeatedly reminded her that these masks are DISPOSABLE
Exactly 💯
Miss your videos! It's always fascinating to see things in such a micro level.
thats not a micro level. the covid is 1000X smaller
Is it possible for a medical grade mask to be compostable? I understand that single use is necessary in the medical field, but I’m just wondering if it’s even possible to phase out plastic waste there. There’s so much. Masks, isolation gowns, gloves, caps, needles.. sooo much. Is there a sustainable material that can be waterproof?
For now, I don't think we have the technology. A high enough density is needed in gowns, gloves, and caps so nothing can seep through nor go through, and most of available natural materials can't really provide that.
The mask in the video as you know is made of a mix of polyester fibers, which does a great job of trapping bacterias and viruses (which is also the reason pet owners rarely use plastic feeding bowls), and a cloth one doesn't have the same efficiency.
The medical industry pollutes so much to keep humans healthy and alive.
@@melovetorun True, but at least it's for a good reason. I don't think we should tackle plastic pollution from the healthcare angle when there are sooooo many more angles that waste more and use plastic in completely avoidable ways. My pet peeve is plastic trays in cookie packaging.
What's even more amazing is the fact that all this gunk is filtered through our nose and the rest of our respiratory system while we keep breathing every second of every day!
I didn’t think about that… life is magic
And this is why the mask is not needed.
The nose filters everything just right in fresh air and if you put a mask on you just suffocate for no reason and breathe the stuff that should be out.
@@CyanideOwl the nose absolutely does not filter everything, it does a good enough job but things can still pass through, and a mask doesn’t block out oxygen in any way, O2 molecules are much smaller than viruses and other particles, and they can easily pass through the mask’s fibers, same goes for CO2.
Our nose filters particles smaller than 5 microns and larger than 0,5 microns
@@CyanideOwl Well at least it took a while to find the first anti-mask comment. The ignorance never ceases to amaze me.
@@federicotorresani9117
i am pretty sure you made some mistake with the filtering capability. 0.5 micrometers is the same as that mask.
i love your channel, such good quality content! you put so much work in it
Great video! So informative. I've tried to explain the aspect of the electrostatic charge many times to people skeptical of these higher quality masks. That seems to be a feature that in particular can help with the extremely small coronavirus particles which can get through most filtering, apparently.
Also, you wrote this music? I love it! Especially where you have a bass walk down over the guitar plucking starting at around 4:52 Fantastic, beautiful, and well done.
3:53 a ✓¡®u$ is thousand times smaller than the smallest speck we can see here. It won't filter bacteria, only dust. Imagine believing it will filter out ✓¡®u$€$. This guy ¡$ either a l¡@® or fv©|
Ambidex, i don't know if fear made ¥0u this $+up¡D but they still don't work even with your magical electrostatic charge. Maybe you just don't know what it really is and how it works but still @®€ an @®®0g@πt p€d@πt¡© p¡€©€ 0f $#¡+ trying to show off knowledge you don't have. Also it's really difficult to catch π0π €×¡$t@πt ✓¡®u$€$ when they even can't get the real ones. Maybe the thousand articles proving it are wrong but the single one carefully cherry picked is right. Uh the electrostatic power pulling a cotton strand 🤡🤦😂💩
I see come the conspiranoics...
I really enjoy the way the tapping fades in at around 2:00
Very beautiful and mesmerizing
Once every few months should be a "catch up day" where students who miss class because of illness can get the lessons missed. They can miss school without worrying that they'll fall behind because the system is setup without measures in place to help kids who miss a few days of classes.
Do you understand the talent you possess with that beautiful music??
this video: Let's check on this dirty N95 mask
TH-cam: THIS IS CORONAVIRUS
Can you try various canned foods (canned fruits, tuna, sardine, SPAM, etc)? Wondering if we could see the cooked bacteria corpses or if the harsh canning processes obliterates them
Thanks for the great video, as usual. I didn't know how these masks worked until now!
just found out abt this channel like 12 hours ago and he comes back from the dead
Should’ve asked my MicroBio professor if I could’ve looked at one of my masks from work during lab. They just relaxed the employee mandates at the hospital last month to almost pre-Covid stuff, but a real gem to look at on higher powers would have been an N95 from early into everything when we were rationing surgical and respirator masks. These things are intended for single use and maybe a day’s labor at most and we were having to stretch them out from 3-7 days at a time.
Your professor was dumb to let you recycle the mask for more than 8 hours.
Would have liked to see the mask i used for about 2 months since my boss didnt supply us with any and no way in heck im buying a new one everyday
I'm just a passing scientist with some thoughts and I have no knowledge of how N95 masks are produced nor do I intend to look too deeply into it. But I do have some thoughts just based on this video:
@2:48 I'm sure they've already done testing to show that charging the fibers makes the masks more efficient at filtering debris. I'm curious though because I would imagine that it should have the opposite effect. Imagine bottom-feeders; they have these hairy fibrous appendages that they wave around in the water to filter food out which they then eat---the purpose is to catch food that is passing through the water by collecting them in one place. If the mask is charged, wouldn't that be functionally the same? For the magnet you found, would that have passed through the mask and been inhaled by the you if the mask wasn't charged? Would it have even been there in the first place if the mask wasn't charged? I imagine you would want the mask to repel debris away from you, not attract them.
I imagine their experiment would have been something like: (1) An enclosed tube with an opening on one end (2) A device measuring the number of particulates in the tube (3) A mask is placed over the open end of the tube (4) They simulate an environment with a high number of charged particles (maybe something like fiberglass which you would find during home construction) (5) measure the number of particulates that get into the tube without an N95, with a non-charged N95, and with a charged N95.
@4:16 This experiment only shows how well the N95 masks blocks bacterial contamination since viruses need a host cell to replicate; they cannot grow on plates by themselves. I imagine for testing against viruses, they would have used what's called a viral plaque assay: (1) a lawn of bacteria is grown on a plate (2) A known quantity of bacteriophage is pushed through the N95 mask (3) They then measure how much bacteria is killed compared to a control group where the bacteriophage was not pushed through the N95.
@5:19 A lot of the colonies from the inside and the outside of the mask look like they are from the same type of microbe; how do we know that the ones from the outside of the mask aren't just the microbes that you are breathing through from the inside of the mask? I think the best way to show this would be to have a sterilized mannequin wear the mask and then to swab both inside and outside after a time. That way you know the mannequin cannot be a source of microbial contamination and that if the N95 is truly filtering, then the inside of the mask should be cleaner than the outside.
Anyway, good video. It's always good to expose more people to science.
Distance-squared effects, mass/charge ratio, and low Reynolds number at relevant scales are useful to consider.
The charge isn't strong enough to attract particles outside of the air current. It is strong only in very short distances (look up inverse-square law).
Viruses do not commonly spread as flying single viruses, but within tiny droplets. There are several studies demonstrating that masks do prevent viral infections.
@@user255 Yeah, helps keep 'em in once the unavoidable air current sucks them into the system.
@@gth042 yes. Mask u wear is for the sake of others, not u
i was doing my internship at the hospital during Covid & had to wear this mask for hours. it's fascinating to see what get caught underneath the mask in microscopic view, thanks for sharing this!
yea so effective two weeks to flatten the curve fuck off you scamdemic!! the mask was never effective from the start
the covid virus is a pos
Fascinating to see how you suffocate yourself and make your lungs slowly develop fungus?
@@CyanideOwl nope, it's fascinating by how all of us slowly succumbing into inevitable death.
4:29 the little single lonely bacteria on the right made me laugh for some reason.
I am interested to see what would shampoo look like under the microscope, considering some shampoos have antimicrobial compounds in them such as zinc pyrithione and piroctone olamine, I'm curious what would happen if you spread them throughout a petri dish and see what would grow.
Can you do the same thing with KN95's, surgical masks, cloth masks, and neck gaiters? What about how dirty hands are before and after hand sanitizer, disinfecting wipes, or other things related to the pandemic?
Yes!
Plandemic*
KN95 is exactly the same as N95, it's just made in Korea, and has been certified for Korean regulatory compliance. Functionally, and physically, they are identical in material and filtration.
Good about hand sanitizers. Also i would expect him to have microscope where one would be able to see bacteria and viruses, not the one for children to play with
@@bigbuckoramma kn95 masks are around 60-70% filtration.. i think. they aren't true n95 masks. better than surgical masks though.
Love these videos. Keep them coming. Have you done fridge filtered water? I measure it and then my RO system. Fridge water measures 50% better than tap water in my area, but RO measures 99.3% better than tap water.
Love your channel especially your music!! Do you structure your vids first and then compose to fit them, or vice versa?
Thank you! I edit the video first then compose the music.
This music would fit in Death note really well
@@sci-inspi the music reminded me of breaking bad intro. is it just a coincidence?
@@hllvr omg yes
Babe wake up, new Sci-Inspi!
My thing is, since those anti-maskers have done so much “research”, why don’t they do both sides of the book and look at videos like this?
My understanding is that rejection of cloth masks-- which lack the features of the mask in this video -- is usually their main point. Medical grade masks are generally acknowledged as helping reduce inhaled particles. The argument is that whether the amount of reduction is worth the cost of wearing the medical grade mask. They would probably say that decision ought to be left to individuals.
great music as always
the music is just so good
it was obviously an avocado ; 2:13 is definitely sponge bob
bruh, I've used this mask for almost months until it gets dirty n nasty, I'd imagine how much residue sticks to it..
Well done, love your video for now I'll change my mask regularly, thanks :3
I mean your old one is still working the same as a new one
Or just stop wearing one if you have a functioning immune system, like everybody did pre-2020.
That's unhealthy man, the amount of bacteria that is touching your mouth and face is probably worse than a toilet seat
@@bergeracvandamme shut up. let ppl do what they want. It's proven to work as you see here and with any other test you can find.
@@bergeracvandamme people in asia wear masks regularly when sick out of courtesy for others. your viewpoint is so america-centric that it's painful
Really cool to see! One thing I do wonder is if you breath in the fibers the mask is made of? Is it made from plastic? Or are all the fibers so strong that it's impossible to loosen and end up in your longs? Greetings & thanks for the interesting video xx
I'd guess the electrostatic charges would handle that.
The respiratory system has excellent filter
@@ShiratoriIsOffline Well that filter only work efficiently on non-biological particles. Whereas bacteria and viruses would just gets stuck on those filter and grow there, that's how you get infection and then it's now the immune system to be depended on in those infection matters that came from those mucosal particulates from those filtering.
@@vicovideocompilationsetc6991 that's what op is asking
@@vicovideocompilationsetc6991 rather, what op is concerned of. Since like you said, it's only efficient on nonbiological particles.
Try a microscope under a microscope
I absolutely love your videos.
Thank you. I plan to do it in the future.
Well on last culture plate there are some colonies of fungus and other colonies can be normal flora like staph.epi from skin and from mouth they can be lactobacilli, staphylococci etc
I wonder if any of those curiously shaped and colored particulates are actually infamous microplastics.
How many people thought that they were going to see corona virus🦠😷 in that mask😂😂
Glad to have your content back!
Woooo another video (with another banger music track, of course)! It was actually really interesting to see the fiber structure that comprises the mask itself
Very informative!
I may not like the results of this experiment but it is still interesting to see. I wonder what the long-term effects of breathing in polypropylene particles are though.
1:55 🙃!
Thanks again for another endlessly fascinating video, had no idea about the charge's function in trapping these little beasties C:
Now imagine how dirty our lungs and and nasal passages are. I hope my body is still okay and hope everyone (my cells) doing their best everyday
Our commensal bacteria and mucous help to protect our respiratory passages …
Yeah imagine additionally clogging our passageways with some diaper because someone somewhere said so.
Man I’ve missed your music so much
Wow. So good to see your video after a long time.
FINALLY!!!!!!!!!!!!!!!! A New Video of Yours. I've Been Dying for You to Make More
This is the way to go!! I really appreciate that you put references the way you put them, this should be the standard in any science video (affirmation-->source).
If you can see some bacteria with this kind of microscope, why didn't you see them in the mask? There is something as the experiment with the petri dishes suggest, maybe only endospores?
THX :)
Awesome video! I have always wanted to see an experiment of how much particles get through a mask, though the way I envisioned it was with a fan shooting colored powder and then recording how much of that got through. Though, I don't think that would have worked the way I want it to
The music is amazing!
Great engineering
Thanks for reaffirming my decision to continue wearing a mask despite the fact that literally no one around me does anymore.
Stay safe comrade!
He just showed that you're walking around with a petri dish on your face. Still gonna wear it?
Helps the rest of us identify the crazies!
You breathed all that stuff in for years and years before C-19. Are you going to wear one for the rest of your life now?
@@caloreen1992 I'll never understand why people like you are so afraid of making a lifestyle change when they receive new information. 100 years ago we didn't know that smoking was as bad for your health as it is, just like how two years ago I didn't know that I was inhaling so much crap. But now that I *am* aware, I'm taking the proper steps. Just like how society mostly stopped smoking once we learned how bad it was for you.
So to answer your question: Yes I *am* going to wear a mask in public for the rest of my life. I see no reason not to. I enjoy not getting sick anymore. What I don't understand is why other people like you care so much. My body, my choice.
Whew! The taping on the guitar! 😮💨❤️ Such impressive videos!
Can you look at the UV-C LED filtering of a LARQ water bottle?
I come here for the music. The videos are just bonuses.
But I now just followed on Spotify to her this song whenever I want. I'd like to buy a bunch of your stuff. This song is great for me to jam to. But I need much more!
I can't wait until N96 drops!
This was super cool! I love your guitar sounds, so lovely!
This song has a very STALKER/wolfenstein hybrid feel to it I dig it
best chanel ever
There’s something about that background music that is very annoying
post rock my beloved
this channel is amazing, so much to learn.
definitely subscribing and sharing it !
Time to whip out the half a million dollar electron microscope
The interesting microscope footage and the music are so relaxing!
The beat goes hard!
Love your channel and content. As a nurse who has worked through the thick of COVID the last 3 years, on a COVID unit, and wearing the N-95 masks for hours long each shift, I can attest to it's ability to protect the wearer. Long story short, I was the first to a code blue situation for a covid patient wearing only a surgical mask (in times of crisis, sometimes we tend to forget about ourselves and focus on the person in need) and had began CPR. Minutes later when I was relieved, fellow colleagues mentioned to me that I need to put my N95 on in which I did but didn't think nothing of it after the event. 3 days later, I tested positive had a terrible 2 week long recovery. Luckily, I didn't have to be hospitalized or deal with any major complications, but the fact that I knew what covid does to people had me worried and thinking about it every single day until I recovered.
Masks do work. We are in a recovery time, but it's not time to get complacent. Stay safe all.
Could you check for beer please? Beer has need yeast for fermentation it could be interesting to see
I LOVE this channel and the chill music
Your music is amazing and so calming
I really like the music for this one sir.
Who made it
@@duckintheheadlights7906
Sorry for the late reply. I believe the music is original to the same creator of this channel. This is a gentleman of science and art.
I wonder how effective masks are at reducing the amount of micro-plastics you breathe in.
Probably very effective and that's a great thought!
Great to see you back
try covid 19 shot if you possibly could somehow
good luck... everybody wants to do that but nobody can get one i their hands to look at. otherwise people wouldnt be so excited about it.
pfizer has release like 100,000 pages of information over the last few weeks and months. a recent one was 80k by its self. that one had some super interesting information in it. like how the shot only has a 12% efficacy rate after a few months. or the inane list of side effects, like shingles or the thing thats like bells palsy. nobody bothers to look through it so the information is stagnant. it cant stay hidden forever though. look at all the super healthy athletes dying in huge numbers recently, 25 or 30 something years old, works out and eats healthy everyday for a living, and falls dead while playing a sport. tennis player in europe dropping like flies. eventually itll be unavoidable.
but pfizer wanted to keep the paperwork sealed for 75 years due to clerical delays or some dumb shit? sure. nothing to do with the dangerous unfinished shots you put out. good luck.
Effective to .3 microns. Covid is .03 microns?
N95s also effective at smaller sizes, but They are tested to make sure they pass a minimum efficacy of 95% at 0.3 microns. At that size, most masks exceed that requirement at about 99% efficacy.
COVID: "Do you FEEL safe?"
*Cloth Mask has left the chat*
I didn’t see any virus or bacteria caught in microscope therefore it seems like a proof of being ineffective - if you look at mere size of viruses it is like a mosquito going through a chain link fence
That is bacterial or fungal growth.
Can you look at Puribag water under a microscope to see if it works?
More effective than I figured
request: the mud that pets drag into the house from walking around in the morning dew under the microscope
Can you show us all the different strains of COVID under your microscopes?
Ok but what with music it's like I'm in some kind of concert and it's about getting hyped up
But viruses are thousands time smaller than the particles you showed.
bingo
banging music as per usual
after watching this, I couldn’t help but took a deep breath….
Could you try one of those uv water bottle waters under a microscope? I was thinking of getting the Larq water bottle, but dont know if the uv light actually works to kill off bacteria.
So glad you're back here! Why haven't you been posting all this time? Lack of time, motivation or health issues? Anyway, love your content.
Best music
How long does the electrostatic effect remain as the mask ages and do they last longer in a sealed bag ? Could an old mask's electrostatic properties be rejuvenated by tossing it in a hot clothes dryer ?
do you use VST plugins for the guitars?
Can you see what is on a human hair strand. I always wanted to know. Thanks
Bro/sis love your videos
Can u See Earphones(speaker) Under microscope
I come for the beautiful music the science is only a plus
I’m going to camping. I need a good filter please advise. Thanks
Hey, new video! I really like your content
Welcome back
At 2:01 That's my key fob. I was wondering where it got too!