A What residues will liquid ozone leave after it dries? Contrary to chlorine, which always leaves an oxidation or disinfection byproduct, ozone simply will revert back to oxygen. Post navigation PreviousWhat is Dwell time ?NextWhy is the NAO( Nanobubble Aqueous Ozone) better than other Sanitizers, Deodorisers and Multipurpose Cleaners ? Cancel ReplyComment Name Email Website Save my name, email, and website in this browser for the next time I comment.