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 E-Mail IMAGE: The environmental test chamber where researchers conducted air purifier experiments. (a) is the exterior with instruments set up outside, and (b) is inside the chamber with mock-up furnishings and materials.. view more  Credit: Illinois Tech The market for air purifiers is booming, but a new study has found that some air cleaning technologies marketed for COVID-19 may be ineffective and have unintended health consequences. The study, authored by researchers at Illinois Tech, Portland State University, and Colorado State University, found that cleaning up one harmful air pollutant can create a suite of others. Both chamber and field tests found that an ionizing device led to a decrease in some volatile organic compounds (VOCs) including xylenes, but an increase in others, most prominently oxygenated VOCs (e.g., acetone, ethanol) and toluene, substances commonly found in paints, paint strippers, aerosol sprays and pesticides. According to the EPA, exposur

United statesBrent stephensMohammad heidarinejadPrashik manwatkarMakram aliInsung kangYicheng zengMarina bekeColorado state universityDepartment of civilDepartment of chemistry at colorado state universityPortland state universityIllinois techEnvironmental engineeringDelphine farmerAssociate professor