Easy but a little noisy.
Neat device. Easy to use to clear the air. The one drawback is the fan noise, so if you plan to put this in a bedroom, consider the new whirring sound and if that will keep you awake. I expected that based on other's reviews and mine is in a closet, so it doesn't affect me, but depending on your intentional usage, you decide if thats a dealbreaker.
Rating: 4 stars