685 Liquid Enzymes is a concentrated liquid that contains a strain of natural bacteria producing enzymes. These strains of bacteria are very efficient in digesting organic waste to help eliminate odors. They consume odors at their source on most kitchen and bathroom surfaces, toilets, urinals, port-a-toilets, drain lines, grease traps, rugs, and carpets. 685 Liquid Enzymes are used to control odors caused by spoiled food, vomit, urine, mold, mildew, or other organic spills. It is safe for use on all surfaces not harmed by water. 685 Liquid Enzymes is for use by hospitals, restaurants, ranches, boats, marinas, dairies, oilfield slush pits, processing plants, public restrooms, zoos, schools, apartments, kennels, hotels, and anywhere annoying odors originate.