We offer bdi-132 Air Curtain. Invisible air door keeps interior of clean room dust free stops entry of insects serves as temperature barrier and helps in isolating heat cooling and humidity. Fabricated out of mild steel sheet balanced blowers are mounted on strong inside frame. Exterior finished in enamel or hammertone paint. Wall or roof mounting are provided. Models are available as per door size.a) 2 feet, b) 3 feet, c) 4 feet, d) 6 feet.