UVC also generates ozone as a byproduct but it's toxic and it damages the lungs. https://www.epa.gov/indoor-air-quality-iaq/ozone-generators-are-sold-air-clean

UVC also generates ozone as a byproduct but it's toxic and it damages the lungs. https://www.epa.gov/indoor-air-quality-iaq/ozone-generators-are-sold-air-cleaners#harmful-ozone https://www.epa.gov/indoor-air-quality-iaq/ozone-generators-... Do read the warning from the EPA.