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Indoor Environmental Quality (EQ) - Americans spend, on average, 90% of their time indoors, where levels of pollutants may run two to five times—and occasionally more than 100 times—higher than outdoors, according to the U.S. Environmental Protection Agency. Similarly, the World Health Organization reports that most of an individual’s exposure to many air pollutants comes through inhalation of indoor air. Many of the pollutants found indoors can cause health reactions in the estimated 17 million Americans who suffer from asthma and 40 million who have allergies, contributing to millions of days absent from school and work. more...