A bit noisy, and truly for tiny spaces.
I am not even sure a small bathroom would be small enough for this device. It does not eliminate odors in a timely fashion and is pretty noisy for the size. We have it running 24/7 in our office but not sure it is doing anything. Would not rely on this for any sort of real difference in air quality. It may have helped slightly with the wild fire smoke - but we have a much larger floor unit that did most of the work. UV does not rely eliminate smoke particulates. Overall would not recommend, get something larger and with an actual filter.
Rating: 3 stars