Kills Staph, Pseudomonas, E. coli, HIV-1 (AIDS virus) and other harmful germs on hard, non-porous surfaces when used as directed. The thick 9.5% hydrochloric acid formula coats, cleans, disinfects and deodorizes the entire bowl by dissolving stubborn stains on contact. The angle-neck bottle targets hard-to-reach areas. Formula will not harm plumbing or septic systems. Use on toilets and urinals.