ODOSHIELD UNSCENTED CONCENTRATE GALLON. Tired of waiting for enzymatic odor products to eat away odors and erase stains? Now comes Odo-Shield a USDA authorized non-solvent cleaner and odor eliminator that works on contact. One gallon can make 42 gallons for neutral ph mopping 21 gallons for carpet shampooing 8 gallons for odor eliminating spray cleaner or 4 gallons of extra strength odor spray. This product is used in everything from detailing auto interiors laundry cleaning pet mess clean-up home interior cleaning of fabric surfaces for soiling and smoke and dish/utensil clean-up in kennels. The most asked question by kennel inspectors to users of Odoshield What happened to the smell?