An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed to people with allergies or asthma, and at reducing or eliminating second-hand tobacco smoke.
An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed to people with allergies or asthma, and at reducing or eliminating second-hand tobacco smoke.
Source: Wikipedia "Air purifier" · CC BY-SA 4.0
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