So I have tried everything under the sun to get rid of the cat pee smell in my home. Most of the time the pee was just mask by the strong odor of the cleaner. I tried it all. Believe me. I've been testing things for 13 years. And then I tried this. ONE DAY and not a smell where I sprayed this. My office chair was a fav marking spot for my male cat who deems me HIS person. So if any other my other cats (2 females) sat on my chair he would mark. I sprayed this on last night and this morning...NOTHING. NOT EVEN A HINT of cat urine smell. Now listen to me. I work in advertising for over 30 years... I know the spin for a product, I am a strong reader of reviews to get an idea of a product. So for me to write a review on something is huge and THIS STUFF WORKS! I also sprayed on a few carpet spots my rescue dog had peed on - stains gone. Even sprayed on a coffee spill on the run...THAT stain is gone too. Couple spots I had to do twice....but this is the real deal!