IP55 Rated Vent Fan: Excellent dust and water resistance protects the AC motor for long service life, ideal for any humid area.Powerful Indoor Air Circulation: VentirMax 780SD fans can reduce ambient temperatures by generating powerful air flow.and keep air circulating. Specifications Color Siliver Electric fan design Exhaust Fan Power Source AC Style Modern Product Dimensions 4"D x 16.1"W x 11.8"H Room Type Attic, Garage, Basement Recommended Uses For Product Air Circulation Wattage 68 watts Number of Blades 3 Air Flow Capacity 780 Cubic Feet Per Minute Voltage 115 Volts (AC) Item Weight 9 Pounds Included Components Cord Indoor/Outdoor Usage Indoor Model Name VentirMax 780SD