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  2. The best air purifiers of 2025 - AOL

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    One of tallest (nearly 24 inches) and heaviest (17.5 pounds) air purifiers tested, the Winix 5500-2 Air Purifier is ideal for small-to-medium rooms (up to 360 square feet), with a True HEPA filter ...

  3. 5 top-rated and lab-tested air purifiers - AOL

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    Honeywell HPA300 HEPA Air Purifier for Extra Large Rooms - Microscopic Airborne Allergen+ Reducer, Cleans Up To 2250 Sq Ft in 1 Hour - Wildfire/Smoke, Pollen, Pet Dander, and Dust Air Purifier ...

  4. 9 Best Air Purifiers of 2023, According to Testing - AOL

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    The best-rated air purifiers for your home and office that can actually help allergies by removing dust, smoke, pollen, pet dander and air pollution. 9 Best Air Purifiers of 2023, According to Testing

  5. This HEPA Air Purifier Has Over 7,700 Five-Star Reviews - AOL

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    The post This HEPA Air Purifier Has Over 7,700 Five-Star Reviews appeared first on Reader's Digest. Say hello to this fan-favorite HEPA air purifier and you’ll be saying goodbye to germs ...

  6. Do Air Purifiers Actually Work? Here's What Experts Say - AOL

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    Every model included in the Good Housekeeping Institute's rigorously tested guide to the best air purifiers you can buy has a true HEPA filter. The air purifier's fan draws air into the filter and ...

  7. HEPA - Wikipedia

    en.wikipedia.org/wiki/HEPA

    HEPA filters are designed to arrest very fine particles effectively, but they do not filter out gasses and odor molecules. Circumstances requiring filtration of volatile organic compounds, chemical vapors, or cigarette, pet or flatulence odors call for the use of an activated carbon (charcoal) or other type of filter instead of or in addition to a HEPA filter. [20]