Wind Turbines Air Vents,Roof Ventilator Dome Ventilator, 304 Stainless Steel Round Exhaust Grille Louvered Vent, for Flats, Apartment, Home Decor(160mm)

Dome Ventilator, Stainless Steel Exhaust Cap, for Flats, Apartment, Home DecorProduct Name: Unpowered wind capMaterial: Thickened 304 stainless steelProduct color: stainless steel colorProduct features: the fan does not use electricity, no noise, can run for a long timeProduct features: no energy power, high speed, high precision, high density, rain and smoke backflow preventionPower: natural wind spontaneous powerEasy Installation: All the wind caps are shipped as a whole, no need to be assembled, comes with installation accessories, easy to install, just take it out and fix it.Working Principle: Using the natural wind and the air thermal convection caused by the difference between indoor and outdoor temperatures to push the to rotate, thus utilizing the centrifugal force and negative pressure effect to discharge the indoor unfresh air.

• Roof Ventilator: Utilizing natural wind and thermal convection of air caused by the temperature difference between indoor and outdoor, the is driven to rotate and expel the uncirculated air from the room. Zero energy consumption
• Material: Roof Ventilator is made of 304 stainless steel, which is thick, wear- and hard. It will not be deformed even if it is subjected to a weight of 100 kilograms. The galvanized rollers are flexible, durable and to pressure.
• Design: The galvanized rollers are strong enough to withstand wind speeds of 200 km/h and loads of 100 kg without deformation or damage. The curved fan blades ensure that rainwater never intrudes under operating conditions. High exhaust efficiency, lightweight operation and protection from rainwater intrusion.
• Variable angle neck design: the fan can be mounted on a 0-22.5 degree slope as you wish, either flat or angled.
• We take every customer's shopping experience seriously,honestly provide high quality products to satisfy our customers.