Designed for use in hospitals, institutions, food production, food service, kitchens and bars. At 1 ounce per 4 gallons of water (200 ppm), Steramine sanitizing solution is effective against E. coli 0157:H7. At disinfectant concentrations, 4 ounces per 5 gallons of water (625 ppm active quat), Steramine is proven effective against CA-MRSA, Avian Influenza A, HIV-1, HBV and fungicidal against Trichophyton Mentagrophytes (Athlete's Foot Fungus).