07/16/2014 // Camfil USA (Press Release) // (press release)
Air Filtration News -With the average American spending some 90 percent of their time indoors, the quality of indoor air is of paramount importance for health, productivity, and comfort. Yet while many individuals are aware of -- and rightly concerned by -- high levels of outdoor air pollution, one statistic may surprise and even shock them: Indoor levels of air pollutants are often 2 to 5 times higher than outdoor pollutant levels.
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