I had a room in my house that my adult potty trained dog had been peeing in (unknown to us) until the room smelled AWFUL. We bought a pee illuminating flash light and found several spots (we’re very disappointed with him) anyways… we locked down the room to stop the problem and then we used urine destroyer. We carpet cleaned. We bought a spot bot and deep cleaned multiple times. We used deodorizing sprays, we left the windows open to to bring in fresh air days on end … we tried it all. We bought this candle and let it burn in the room for a whole day. Then a whole day the next day and have left the room alone since then. The pee smell is totally gone !! Now I burn the candle in the room with our litter box from time to time. I will always have one of the on hand! Love it! It smells really nice too.