It's definitely small and easy to store, I don't even notice it being in the room anymore. I'm not sure if that's a good thing or a bad thing. I don't know if the size of the purifier is too small to make any difference to the size of my living room or not. It's possible that this doesn't do any good at all. I haven't noticed a difference. If anyone else has that's great..I Haven't needed to clean it because it's not dirty, so ya, it must not be doing anything.