The ConairPure Medium room Air purifier is perfect for small space. Its sleek design allows to stand up or laying on its side, also lightweight and quiet on lower settings.  I have very bad allergies plus a few pets and used this in my bedroom. After a few days I did notice my sneezing decreasing and my breathing easier at nighttime. (Conair kindly gave me this Room Air Purifier for free so that I could review it)