high quality, works well, not too loud, good size
I have been using this HEPA filter over the last week and it is working quite well. Both my wife and I have both noted a subjective improvement in air quality in the room where we are using it. It is sturdy and well constructed, and appears to be moving significant amounts of air through the filter. It's not completely quiet, but the sound that it does make -- even on its highest setting -- is basically some soft white noise: the sound is not distracting within the room and doesn't get in the way of conversations at a normal volume. We have run the filter 24/7 over the last week and it seems dependable; I will update this review if we notice any problems with durability (which I am not expecting!).
Rating: 5 stars