... photos: SpecificationsApplication: HVACR Equipment, Machinery, Air Source Heatpump etc.Function: Ventilation, Cooling, Heating, Air Conditioning, Draft Inducing, Air Refreshing, Air Circulation and so on. Features1 ... of new polymer materials, larger air-flow, lower noise, compact structure2. ROHS environmental protection authentication3. After special treatment, to prevent mildew, permanent ...