AWESOME!!
This little guy does the job. I placed my GermGuardian GG1000 next to the cats litter box and there is no smell at all, even after me being away on a 5 day vacation.  Anyone with cats can appreciate that!  I would definitely recommend it for any room in the house where you're looking to eliminate odors. It's fairly quiet, I keep it running non-stop and it doesn't bother me at all.
Rating: 5 stars