No Power Roof Ventilation Spiral Roof Fan for workshop and warehouse Material:stainless steel 304&201,colorized steel,aluminum Diameter:300,450,500,600,680,700,800,880,1000mm Instruction: The roof ventilation fan applies the theory of convection between natural wind and air to accelerate and transform any parallel airflow into vertical so as to improve the indoor ventilation. The hot air rises and cold air falls, which makes the fan rotate. It improves the working environment, protects workers' health and enhances the working efficiency. Application: It is widely used in warehouse, toilet, factory, workshop, stadium, tennis hall, assembly hall, garage, paper mill, galvanization factory and coating factory. Advantage:1. Environmental protection, energy saving and no electricity cost. 2.stable and durable, dehumidification, anti-sweat and rain-proof. 3.High sensitivity and no nosie. 4. Easy and fast installation Contact us if you need more details on Roof Ventilation Fan. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Roof Ventilation Fan、Roof Ventilation Fan. If these products fail to match your need, please contact us and we would like to provide relevant information.
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