Dumb Cat works by eliminating the pheromone scent, not just urine odor from carpets and flooring, Cats and kittens return to the litter box and end scent confusion, Upon contact, instantly, all remains of cat spray and marking scent are removed with no harm to surfaces. Helps stop cats from urinating outside the litter box and spraying walls etc. Works even after using popular enzyme stain and odor products.