High Velocity Air Curtain is available with cabinets that are made of quality grade cold rolled mild steel. The Air Curtain forms an invisible curtain of continuous air and thus prevents escape of conditioned air as well as entry of outside hot, humid, dirty and unwanted polluted air The Air Curtain is designed to provide uniform air with minimum noise and no vibration. High Velocity Air Curtain works using continuous rating motors with sealed ball-bearings.