SMALL PORTABLE ARCTIC COVE EVAPORATIVE COOLER Key Features and SpecsAirflow: 500 CFM (Cubic Feet per Minute)Coverage: Up to 350 sq. ft.Speeds: 4-speed fan controlPower Source: 120V Corded Electric (consumes about the same amount of power as a standard household fan)Tank Capacity: Typically features a 2 to 5-gallon removable water tank for easy, less messy refillsMobility: Built-in wheels/casters make it highly portable for room-to-room or indoor/outdoor use