This purifier is compact, easy to operate and covers an ample amount of space.  I found it most helpful in the soothing sound as I run it at night which alleviates the annoying pulsation in my ear due to a condition known as tinnitus. This purifier allows me not only to have a good night's sleep but the satisfaction of knowing it  purifies the air to counteract, bacteria, etc.   I am very pleased and the price was very reasonable.