slightly noisy
This is a perfect little  air purifier.  I wanted something to put in our mud room.  This seems to have worked quite effectively.  I have certainly noticed a decrease in odors.  The only drawback is that I feel that it is a little noisy.  It is not something that I would want in a room where you would want complete quiet.  Over all it is a great purified and does what it claims to do.
Rating: 4 stars