Ultra-Safe Plus+ Medical 50% Stronger: 1 quart (32 oz.) of the 50% Stronger concentration will make 1.5 gallons of our regular full strength Ready to Use product. A powerful commercial, medical, hypo-allergenic and non toxic cleaner. Works to eliminate Gram (-) and Gram (+) bacteria by working in a microbial action and it works wonders on fungus, mildew, molds, spores and parasites. It helps to control cross contamination even after it dries on hard surfaces for up to 4 weeks. It is used in tough to clean and unsanitary conditions such as animal shelters, bathrooms, daycare centers, dental offices, kitchens and any other areas where sanitary conditions are required.