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Winix Air Purifier's HEPA Filter Claims Are False, Suit Says

By Gina Kim ( October 22, 2025, 4:30 PM EDT) -- A Winix Global customer has filed a proposed false advertising class action in Illinois federal court alleging that the company is "making a killing" selling air purifiers and replacement filters that fail to live up to claims that they can capture at least 99.97% of dust, pollen and any airborne particles....

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