Defense Soap Disinfectant Tablets made the EPA`s List N of antimicrobial products for use against Novel Coronavirus SARS-CoV-2, the Cause of COVID-19 The single dose tablet delivers accurate strength solution every time, eliminating the need to measure and pour guesswork. Simply drop 1-2 large tablets into a sprayer for every gallon of water used. One gallon covers about 6,000 square feet (about four wrestling mats). • EPA-registered bleach alternative that is less corrosive than traditional bleach • Strong, hypochlorous acid base effective against a broad range of microorganisms includes C. difficile spores, Hepatitis B, and Norovirus. • Surface and user-friendly tablet delivers accurate strength solution every time with no measuring • Offers 3-day shelf life when diluted into a closed container and 3-year shelf life in tablet form • Less irritating odor than harsh chemicals