Doesn't work for smoking
I bought this for use in an apt. bathroom (small) because of smoking. I ended up buying the larger desktop size for that and that size works better. I switched this plug in to the other bathroom (same size) that has a litter box. There hasn't been any change in odors for that either.  Maybe it works well for dust or allergies but not for the odors I mentioned above.
Rating: 2 stars