What to Know About Air Purifiers

SOURCES:Consumer Reports: “Air Purifier Buying Guide.”Indoor Air: “On the history of indoor air quality and health.” United States Environmental Protection Agency: “Air Cleaners and Air Filters in the Home,” “Guide to Air Cleaners in the Home,” “Indoor Air Quality.”University of Massachusetts Amherst: “Air Purifiers Fact Sheet.”University of Rochester Medical Center: “Air Filters, Dehumidifiers, and Humidifiers.”