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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 as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .
HEPA (/ ˈ h ɛ p ə /, high efficiency particulate air) filter, [1] also known as a high efficiency particulate arresting filter, [2] is an efficiency standard of air filters. [ 3 ] Filters meeting the HEPA standard must satisfy certain levels of efficiency.
This air purifier has it all: an H13 HEPA filter that effectively filters out tiny particles; a quiet sleep mode; and an aroma pad that'll make your space smell super fresh. Save $30 with coupon ...
High efficiency particulate arrester (HEPA), [2] [3] originally called high-efficiency particulate absorber but also sometimes called high-efficiency particulate arresting or high-efficiency particulate arrestance, is a type of air filter. Filters meeting the HEPA standard have many applications, including use in clean rooms for IC fabrication ...
The TCL Air Purifier has a three-stage filtration system that includes a pre-filter True HEPA and activated carbon filter that last 3-6 months. With these filters, the purifier is able to filter ...
Two proprietary scales are used to rate sub-HEPA air filters. The Home Depot scale is known as filter performance rating (FPR), and is reduced from a 1–10 scale to only 5, 7, 9, and 10. It measures ability to capture large particles, small particles, and weight change over the lifetime of the filter. [2]