Stainless Steel Air Curtain forms an invisible curtain of continuous air when installed on a door, and thus prevents escape of conditioned air as well as entry of outside hot, humid and polluted air. The Air Curtain helps in maintaining cleanliness and hygiene up to the required standard. The Air Curtain is available in various models and in five different velocities. The Stainless Steel Air Curtain is suited for door openings starting from 2.5 ft.