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Power-generate ventilator not only circulate the air to help improve the indoor air quality, but also provide electric lighting.
Base on the air convection principle, it rotates by outside parallel flows to convert the indoor air into vertical air which will be vented outside. It works like an exhaust fan installed at the roof. Besides, it can store the electricity generated by the rotation of the fan blades to provide lighting.
There is an air circulation problem on the blockhouse of Africa. With the windy weather in Africa, it can take advantage of the natural wind to improve indoor air quality as well as the poor indoor lighting.