Quiet...like a jet plane.
Item is described as quiet. No one who has ever used this could possibly believe that. Also, the bubble feature is non-existent. So disappointed in this after reading all the rave reviews. In other news, the heat function doesn't work either...I put warm water in and it just got cooler and cooler. DO NOT BUY THIS, it is truly the worst thing / biggest disappointment I've ever purchased on Amazon.
Rating: 1 stars