Schools Spent Millions to Clean Indoor Air, Now Some Fear Technology Could Be Dangerous

San Jose, Calif.-based NBC television station KNTV reporters Bigad Shaban, Robert Campos, Jeremy Carroll, Michael Horn and Mark Villarreal say Bay Area school districts spent millions of dollars on air cleaning systems, which some air quality experts say could endanger students’ health. An NBC Bay Area Investigation reveals why scientists, including those at the Environmental Protection Agency, are now questioning the efficacy and safety of new technology utilized in some devices that are supposed to clean indoor air. Industry experts say fears of the pandemic and a willingness of consumers to pay out big bucks have transformed the air cleaning…