Air curtains, also called air doors or air screens, are self-contained units that blow high-speed air between two spaces to create an invisible barrier. They are installed above doorways or next to openings.
Because air curtains act as invisible doors, they maintain separate temperatures between two spaces and reduce heated or cooled air loss. Energy savings from the installation of an air curtain can be enough to pay for the unit in a short time.
Top uses for air curtains include keeping out insects, fumes, smoke, dust, dirt and odors. Retails shops, restaurants, even homeowners discover how perfect they are for entrances with doors that are constantly opening and closing.