The SUDARSHAN AIR VENTILATOR is a revolutionary conceptual product which exhausts the hot gases from an enclosed area without using any electric power. Yes absolute zero power consumption. It has no operating cost and gives excellent ventilation performance making the work areas like Industrial Sheds, Factories, Foundries and Forging Units Oil Mills, Chemical Factories, Restaurants, Paint Shop, Packing Room, Boiler Room, Process House, Hospitals.