Size: 1 Quart Ur-In Control urine odor eliminator for cat, dog, pet and human odors including urine, vomit, fecal matter, perspiration and more. Effective for a large range of applications. It works great as a cat urine odor remover a dog urine odor remover or as any other pet urine odor remover. It even works to remove human urine odors from mattresses or grout on floors. We love to hear from our customers that as a cat urine odor neutralizer, a dog urine odor neutralizer, or pet urine odor neutralizer it is second to none! We love our cats, dogs, and pets (and kids) but sometimes accidents happen. If you are looking for a cat odor spray, dog odor spray or human odor spray for carpet, floors, grout, bedding or any other surface then Ur-In Control is what you want. It is safe to use on any surface that would not be harmed by water. Even if the cat urine odor is old Ur-In Control will work. Yes, with older odors it will take longer to eliminate but with a little patience, the urine odor will be removed. There are over 200 billion enzyme-producing cultures per gallon that can eradicate odors in just minutes. No more covering up offensive smells or hoping they will just go away. Ur-In Control enzymes digest the source so that foul pet and human odors disappear forever! The 100% Biodegradable formula is environmentally friendly, non-toxic, non-caustic, non-acid, and non-polluting. Ur-In Control cultures grow with or without air and are non-corroding making it perfect for a wide range of applications. Made in the USA How it works: Our over 200 billion enzyme-producing cultures per gallon are SUPER hungry just looking for something to eat! When you apply Ur-In Control to an affected area including urine, vomit, fecal matter, perspiration, and more they digest these contaminates using them as food, not just covering them up! What is left behind Just a fresh clean scent, carbon dioxide, and water! No more urine odors or other foul smells.