Enviroguard64 is a one-step, 2 ounce per gallon concentrate. It is a broad spectrum hospital grade disinfectant, deodorizer, residual laundry additive and high potency hard surface disinfectant with EPA approved efficacy claims for over 114 organisms. It is also USDA approved. ENVIROGUARD64 is approved as carpet sanitizer against odor producing bacteria and also as a laundry additive with residual activity. ENVIROGUARD64 helps meet all OSHA and Federal regulations for bloodborne pathogens and will kill the HIV (AIDS), HBV (Hepatitis B) and HCV (Hepatitis C) viruses with the appropriate contact time. ENVIROGUARD64 is active in the presence of 5% serum and 400 PPM hard water.