Air King's 9166 20 whole house window fans bring fresh air in or exhausts stale air out of residential settings and are powerful enough for light commercial use. The Air King 9166 window fan features a powerful and durable motor that provides the needed amount of air movement. The fan can be set for intake or exhaust and mounts into windows 27 inches to 38 inches wide with a height of at least 26.25 inches. The special Storm Guard mounting system allows the fan to be installed in front of the window so that in bad weather the window can be closed behind the fan without having to remove it. Constructed of an impact resistant plastic housing with powder coated metal grills and blade. ETL listed and complies with OSHA requirements. 20-inch window fan powerful enough to provide air movement to the entire home or office Constructed with powder coated steel fan blades and grill with an ABS body for years of durable worry free operation Permanently lubricated motor provides the needed power and requires little to no maintenance Storm Guard feature allows window to be closed behind the fan Comes with a 1-year limited warranty UPC 046013459824 Color Black and Gray Speed 1600 RPM Style Modern Voltage 120 Volts Wattage 170 watts Material Blade and guard: Powder coated steel, Housing: ABS plastic Room Type Garage, Basement, Home, Office Brand Name Air King Model Name Air Circulators Unit Count 1.0 Count Finish Type Powder Coated Item Weight 33.5 Pounds Noise Level 64 Decibels Switch Type Rotary Switch Manufacturer Air King Model Number 9166 Power Source ac Mounting Type Window Mount Control Method Touch Item Type Name 9166 Collection Name Window Fans Controller Type Button Control Number of Blades 3 Number of Speeds 3 Special Features 20 Fan Blade, 3 Speeds, 1/6 Horsepower, Can Exhaust or Bring Fresh Air In, Powder Coated Steel Blade and Guard Air Flow Capacity 3560 Cubic Feet Per Minute Specification Met INTERTEK Electric Fan Design Window Fan Included Components Storm Guard slider panels, Mounting hardware, User Manual Is Product Cordless No Indoor Outdoor Usage Indoor Standby Power Shutoff 20.94 cubic feet per minute per watt Number of Power Levels 3 Item Dimensions D x W x H 11.25 D x 26.75 W x 26.25 H Recommended Uses For Product Air Circulation, Cooling