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Indoor HEPA filters significantly reduce pollution indoors when outside air unhealthy, study finds

Outdoor air pollution is a major contributor to indoor air pollution -- but high-efficiency particulate air (HEPA) filters used in the home significantly reduce fine-particulate matter in the air compared with non-HEPA air filters, according to a new two-year study led by researchers at Intermountain Healthcare in Salt Lake City.  Read more...
 

 

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