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Air curtains provide a barrier of air to help lower energy costs by eliminating untempered outside air from entering through open doors. They also help keep dust, pollutants, and flying insects from entering through open doors and are safer than plastic vinyl strip curtains. Heated air curtains help create a more comfortable work area by providing a warm protective barrier over openings exposed to low ambient temperatures. Air curtain accessories include motor control panels and door switches that allow you to customize a unit for your specific application.