For more on HEPA and CADR, see our primer on HEPA and CADR filtration testing. According to AHAM, your air purifier should have a CADR rating equivalent to about two-thirds the area of your space (in square feet). CADR tells you how much air (in cubic feet per minute) an air purifier can process within one minute.
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The Association of Home Appliance Manufacturers works with independent laboratories to certify air purifiers that meet its standards, including verification of their CADRs across different particulates like dust and pollen.
That’s why experts recommend you couple HEPA-level filtration with the air purifier’s CADR, which gives you more information about how well an air purifier will clear a given space of contaminants (including tobacco smoke, dust and pollen), its primary purpose.
Every expert we spoke to agreed HEPA is a strong mark for filtration, but lack of regulation can complicate your shopping. High-efficiency particulate air filters, or HEPA filters.Experts highlighted two considerations above the rest. There are several standards and testing procedures that help show how efficiently air purifiers clear the air in a room.
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In some cases, the nature of the item means that it is non-returnable, for example, due to hygiene/health and personal care/wellness/consumable nature of the product.Shopping How to pick an emergency kit How to find the best air purifier for youĮxperts agree that filtration is key when choosing an air purifier - measuring that can be tricky. Office Products and Wireless Returns Policy
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