To Battle Covid, Airlines Bet on Disinfectants That Come With Questions

Make no mistake—killing the virus that has killed a million people world-wide is the priority. But scientists say long-term effects of one chemical used by several airlines, including the three biggest U.S. carriers, aren’t well known, and multiple applications of it each day hasn’t been studied. The chemical is a quaternary ammonium compound. QACs, or quats, have been linked to lung damage and asthma.