Environment Friendly Industrial Ventilators feature self greased Teflon bearings that help in smooth and friction free rotation. These Industrial Ventilators are equipped with high speed controlling instrument that defends it against fast blowing wind and in shedding water. These Ventilators also improve the longevity of insulation, rafters, roofing material and shingles. Environment Friendly Industrial Ventilators are made using quality grade material to ensure optimum performance for longer period of time.