36" Maxwell Commercial Designed Air Curtain with Micro-Switch Included - 115V Air Curtain is NOT an air conditioner. Maxwell boasts a streamlined modern appearance with no visible exterior screws. Features heavy duty door switch, metal mounting plate, and stainless cover constructed of durable aluminum. Saves energy with powerful airflow that divides the inside and the outside environments into two independent temperature zones. Low noise air flow maintains temperature separation up to 14 feet door height. Maxwell air curtains are designed to keep out the Summer heat, winter cold, dust, insects, smoke, unpleasant odors and exhaust fumes. 2 speeds of operation: High speed at 647 CFM, Low speed at 529 CFM. A HI/LO/OFF switch to select High/Low speed. 110V-120V 60Hz. 300W Max, 270W Min. Powerful Air Velocity (FT/SEC) 52/42. UL listed and Certified for safety & 1 year limited manufacturer's parts warranty. Easy Installation: removable mounting plate and dedicated 2 wires for door switch.