AOE Animal Odor Eliminator (professional strength) Eliminates, not masks, odors from anal gland secretion, tom cat spray, necrotic tissue, urine, feces, emesis, etc. Used on animal, accidents, bedding, cages, litter any companion malodor. Spray directly on the source of the odor. Can also be used as an air freshener. Ideal for deodorizing cat litter boxes and neutralizing tomcat spray in the home. HOW TO USE For quick, permanent results spray directly on the source of the odor (surface of litter). If odor persists after AOE has dried, the source of the odor has not been reached. Reapply. For best results with imbedded odors in porous objects such as carpets and upholstery use Cat-Off.