XtremepowerUS 24" Inch Heavy Duty Rolling Velocity Drum Floor Fan New technology reduce noise level by 30-percent making it one of the quietest fan on the market 120V 60Hz 150W Motor UL Approved Automatic Overheat Protection, 2 Speed Rotary Switch 2 Speed Setting Low: 6,475cfm, High: 7,700cfm Includes: 2pc 6" Casters For Easy Moblility