ODOSHIELD UNSCENTED READY TO USE 32 OZ WITH PUMP SPRAY ATTACHMENT. 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. Use a product that so many hospital, hotel, apartment maintenance and automotive detail professionals rely on for tough stains and the worst odor problems.