no power fan

No power fan (natural ventilator, also known as the roof for natural ventilation, and he applied to the installation of ventilation in the warehouse workshop, desiccant cooling, ventilation to keep cool, dry storage, avoid high-temperature heat and humidity caused by the production of raw materials, manufactured goods, such as mildew damage. natural fit for the particular fan of humidity, corrosive, heat production, and there is odor, smoke, dust generated by industrial plants workshop, warehouse, etc., and its excellent ventilation, smoke dust, elimination of smell, desiccant cooling performance, high-quality durable materials, quiet, reliable, non-power operation and low cost of maintenance costs, is highly cost-effective, users can help reduce unnecessary costs, and ensure the long-term users interests are industrial plants, storage devices ideal ventilation.