Create an invisible barrier over your door with Maxwell MASF series. Adopting the highest technology in aerodynamics, all Maxwell Air Curtains run smoothly with low noise. Easy to open and clean, the MASF Series Air Curtain by Maxwell boasts a streamlined modern appearance with no visible exterior screws. Features stainless cover constructed of durable aluminum. Its uniquely designed air guide bar can produce airflow in all directions, making it ideal for various installation locations. They are ideal for any location where you would like to create an invisible barrier to dust, insects, and pollution. The powerful airflow divides the inside and outside environments into two independent temperature zones. This minimizes air conditioned/heated air losses through opened doorways and areas with doors that are constantly opening and closing. Easy to adjust with directional airflow louver and convenient two-speed hi-lo fan operation controlled by a unit surface mount switch. The air curtain uses ambient air and is not an air conditioner. Includes 36” air curtain, door switch, installation hardware, 5 ft. power cord with grounded NEMA 5-15 plug, user’s manual, installation manual, manufacturer warranty.