If ionizing radiation is unsafe, then why is it safe to ionize the air with an air purifier? - Quora
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Trendy air purifiers: Do they really work and are they worth their eye-watering price tags? | Daily Mail Online
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Vremi Premium True HEPA Air Purifier for Large Rooms - Removes 99.97% of Airborne Particles with H13, Activated Carbon and 3-Stage Filtration - Have A Great Air Day : Amazon.ca: Home
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