Beaphar Odour Eater radically eliminates urine odour from the litter box. Odour Eater works in two phases. During phase 1, cat urine is absorbed very quickly. Odours no longer escape from the litter box. In phase 2, natural bacteria break down the urine components. This keeps the litter box hygienically clean and fresh. The litter box filling lasts up to 2 times longer. With a fresh perfume that is not annoying to cats.