The Dyson Cool AM07 Tower Fan generates smooth, powerful airflow for personal cooling. Like all Dyson bladeless fans, it uses Air Multiplier technology to draw in surrounding air, creating powerful air projection. Some fans are quiet but weak; others are powerful but noisy. AM07 is quiet and powerful. There's also a remote control for precise airflow control, and a sleep timer - am07 can be programmed to turn off after preset intervals, for ease of use throughout the night. With the Quiet Mark stamp of approval, this product has been found to be one of the quietest in category, helping to create a calm environment within your home.