This is an unpowered exhaust system with a spherical blade design that is suitable for industrial buildings, factories, workshops, livestock farms, and etc. The product principle utilizes the temperature difference between indoor and outdoor air to create convection, driving the turbine to rotate. The negative pressure effect of centrifugal force is then used to exhaust stale indoor air. It is easy to install and requires no external power source.SpecificationColor: SilverMaterial: Stainless steelTotal Size: 400x400mm / 15.75 x 15.75 inch(D*H)Bottom Diameter: 300mm / 11.8 inchPacking List: 1 x Roof VentAdvantage Stainless steel offers excellent corrosion resistance, high strength, heat resistance, and decorative appeal, making it durable.
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