Formula uses hydrogen peroxide to remove uric acid crystals and break down the cell structure of bacteria to eliminate the lingering smell and evidence of urine. Works great on hard non-porous surfaces such as concrete sidewalks, outdoor tile, trash areas, outdoor concrete, walls and flooring, laundry pre-treatment, pet stains, and bodily fluids removal including feces, blood, and vomit. Also use in public restrooms, veterinarian offices, and other commercial facilities.