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  2. Who knew you could get a personal air purifier at Walmart for ...

    www.aol.com/lifestyle/knew-could-personal-air...

    That's where an air purifier can help — and, right now, Walmart is offering up the popular Holmes Personal Space 2-Speed Air Purifier with Air Ionizer for just $18.

  3. 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 ...

  4. Tips to find the best air purifiers to protect against L.A ...

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    Web searches for "air purifier for wildfire smoke" in Los Angeles have increased by more than 5,000% since the fires broke out, according to Google Trends.

  5. Air ioniser - Wikipedia

    en.wikipedia.org/wiki/Air_ioniser

    Air ioniser and purifier with its dust collection plates removed. Air ionisers are used in air purifiers to remove particles from air. [3] Airborne particles become charged as they attract charged ions from the ioniser by electrostatic attraction. The particles in turn are then attracted to any nearby earthed (grounded) conductors, either ...

  6. Air purifier - Wikipedia

    en.wikipedia.org/wiki/Air_purifier

    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 .

  7. Clean air delivery rate - Wikipedia

    en.wikipedia.org/wiki/Clean_Air_Delivery_Rate

    If a filtering unit uses a MERV 12 filter that removes roughly 40% of the smoke particles, then it may still obtain a smoke CADR of 80 by filtering 200 cubic feet per minute instead of 100 CFM. Conversely, a 99.97% HEPA filter (MERV 17) that removes over 99.9% of the smoke particles needs to filter 80 cubic feet per minute to get a CADR of 80.