It's very quiet. I put it on my nightstand next to my bed. Did not bother me a bit. I've been using it almost every night since I got it and it's still working fine. It looks very cute too.
The only thing is that when you refill the water tank, it could become a little heavy. But you don't really need to completely fill it up. Even just half or 1/3 full, it can last quite a few days already. Just like some other users recommended, I cleaned it by putting some vinegar in and shook it vigorously for a while.Get more detail about Crane Adorable 1 Gallon Cool Mist Humidifier, Elephant Shape.