This small air purifier fits perfectly in the corner of the office where we keep out litter box and our cat hangs out most of the time.  I like to keep the dander down so there aren't a ton of allergens in the air.  It helped with the cat odor and dust too. It fits in with the decor and you can hardly notice it's there.  It was easy to set up and is very quiet on the lowest setting.  I liked all the sensors on it as well and that it ran in eco-mode so it wasn't wasting a ton of energy.