We recently bought a house and the previous owners left their poor puppies to die in the garage. Which left the most awful smell. We tried EVERYTHING to remove the smell. Scrubbed the floor, ceiling, and walls with every chemical possible and nothing budged the smell. We bought an Air Scrubber, as suggested by employee Mike Heinlein. AND IT WORKED! There is absolutely no trace of any dog smell, no musky smell, nothing! We are so thankful for Robinson Heat and Air!