The QE Air Curtains are ideal, easy to install, and functional units for your door/entrance. This is a low-maintenance product that reduces energy consumption and costs. Each curtain can be used at door heights of up to 9 feet and include a metal powder-coated finish that is corrosion-resistant. An excellent way to minimize dirt, dust, fumes, and prevent flying insects from intruding. Each unit includes a remote control, 3 speed natural wind, is individually packaged, and boxed.