I'll never buy another brand for heater or fan. I'm kind of sound sensitive. This heater is amazing for how quiet it is, and the way it heats the room, not just the air in front of the heater. My house has those little in-wall heaters in every room, and they are really noisy and inefficient. If one comes on in this little house, it wakes me. I don't hear the Vornado heater running unless I make a point of listening.