Simple Green Cat Stain & Odor Remover works to get rid of those stains your kitty sometimes leaves behind. This non-toxic formula is safe for home use and removes urine, feces, scent markings and dirt. It works on carpets, floors, upholstery, crates, litter boxes or any other areas where cat odors build up over time. This stain remover also discourages revisiting and remarking. Simple Green Cat Stain & Odor Remover is safe to use around your furry friend and leaves behind a clean scent.