Scanfrost Industrial Fan SFIF20D Control battles stifling summer heat or stuffy enclosed spaces with an arsenal of effective air-cooling features. The high efficient blades of the Scanfrost Industrial Standing Fan lets you cool your body temperature in an instant. It has a silent operation so you can use it anywhere whether you are in the office working or at home trying to rest. Scanfrost Industrial Fan SFIF20D has three-speed settings allow for a gentle breeze, steady wind, or maximum heat-busting blast with the turn of the easy-grip rotary control, and the quiet operation won’t get in the way of conversations or sleep.