Clean+Green Wood and Tile Pet Odor and Stain Remover for Cats, 16-Ounce Clean + Green will get rid of the problem source that it reaches, and then will help to pull what's deposited further. To get rid of old odors several applications may be necessary. Quick and Easy: Works on contact . Just spray-no need to soak, scrub or rinse. Made in the U.S.A. Exclusive patented encapsulation technology and advanced eliminator formula.