Well-known for their high quality and performance, Air King Fans are a leader in the ventilation industry for a reason. This 18" three-speed Wall Mount Fan is permanently lubricated to reduce maintenance headaches, and its powder-coated steel grill keeps moving parts safely out of reach. It's a 120V, 1970 cfm wonder that mounts easily to most surfaces so it won't take up floor space in tight areas, and includes a pull switch for easy speed adjustment. Unit dimensions: 20 ¼ inch L x 15 ¼ inch W x 23 inch H; oscillates 90 degrees. UL and OSHA compliant.