Effectively deodorizes and removes persistent odors caused by pet stains, mildew, mold, smoke, sewage, etc. HIGHLY CONCENTRATED. When To Apply: When there is an odor problem on carpets or upholstery. Can be used without dilution for stronger effect on severe odor problems. This is a quick & profitable add-on service! Dilution Data: Dilution: (2-3 oz. of FRESH per gallon of water).