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How long does it take to replace these filters? Is there an alarm indicating that it is time to replace the filter?
Depends on your use status, usually 1.5 to 3 months, if there's smoke, you should replace the filter immediately
How long does it take to replace these filters? Is there an alarm indicating that it is time to replace the filter?
Depends on your use status, usually 1.5 to 3 months, if there's smoke, you should replace the filter immediately