Kills 99.9% of germs (Staphylococcus aureus (Staph), Salmonella enterica (Salmonella), Streptococcus pyogenes (Strep), Trichophyton interdigitale (Athlete's Foot Fungus), Influenza A Virus and Aspergillus niger) & bacteria. Kills Covid-19 virus (Kills SARS-CoV-2 on hard, nonporous surfaces). Prevents mold and mildew growth for 4 weeks (Based on ab testing. Follow directions for mildew prevention). Penetrating foam for scrub-free clean. Contains no phosporus. Works on: Tubs & glazed ceramic tile. Toilets. Sink & counters. Smart Tube Technology - Spray every drop.