UrineFree Odour and Stain Remover (500ml) An all-in-one bio-enzymatic product in an easy to use spray bottle that will clean and remove all urine odours and urine stains whether dog urine, cat urine, other pet urine, human urine and household accidents. Works on carpets, fabric, wood floors, cement, tiles, porcelain, mattresses and most surfaces. Made In Australia How it works Urine (dog, cat or any animal) consists of urea, urochrome and uric acid crystals. Most general cleaners only remove the water soluble components of urine (urea and urochrome) but leave behind the non-soluble uric acid crystals that retain the urine stain and strong urine odour. These crystals attach to surfaces and are very difficult to dislodge. Any humidity or dampness will trigger the dormant crystals bringing back the urine smell. UrineFree's bio-enzymatic formula "eats up" the urine and uric acid crystals whilst removing the urea and urochrome components, eliminating both the urine stain AND the urine odour for good.