NeutradolM S George Continuous Deodorizer Super Fresh Gel

This stuff works like a charm. My cat peed in a spare bedroom that always has the door shut, so sometimes the odor sneaks in as the temps rise. After ONE day in the small room the smell is gone! I have been steadily moving it around my house to neutralize odors. I leave it in a room for a few days and have used it in closets and my wet basement. Beware, pets need to not be able to reach it. The consistency and packaging seems like it could lead to a very nasty mess and it can't be safe for pets. I always shut out the cats of the room it's in. The package didn't really survive shipping and some of the chemical leaked out, but it was easy to clean it up.

Perfect!