EPA-registered to kill C. diff spores in 4 minutes. Effective against Norovirus, Salmonella enterica, Staphylococcus aureus, Pseudomonas aeruginosa, carbapenan resistant Klebsiella pneumoniae, and Acinetobacter baumannii without preclean. Safer than bleach or peracetic acid. Features an NFPA rating of 0,0,0 and no personal protective equipment is required at use dilution. pH of 5.5 to 6.5 is closer to neutral than bleach or peracetic acid. Costs significantly less than ready-to-use bleach. 5-year shelf life in sealed packets. Dissolves in approximately 3 minutes. Highly versatile, use with a cloth, wipe, mop or coarse trigger sprayer. Will not bind to common wiping media. Easy to use with a mild chlorine smell. Dilution Ratio: 4 tablets to 1 quart of water.