Electric smoke ventilator is widely used in industrial plants, such as metallurgy, chemical, machinery, supermarkets, shopping malls, and other public buildings. In addition, smoke exhaust ventilator can also meet the needs of fire protection and realize the needs of firefighting protection connection.

In northern areas with heavy snowfall, we need to consider the wind and snow load capacity of the smoke ventilator. The snow load capacity of the smoke vent rooflight on the steel structure factory's roof  is mainly determined by the design form, material and thickness of the rain shield of the steel structure. The type and specification of the steel structure material are very important. Before designing the smoke vent skylights, it is necessary to fully consider the requirements of wind and snow load.

In the aerodynamic theory system, when the wind acts on an object, the windward side is pressure, and the leeward side and the downwind side are suction. The steel roof ridge vent mainly uses the large volume formed by the height and arc of the ventilator body, which can improve the emission efficiency of smoke, gas, mist and dust.

In addition, smoke ventilator also need dust removal function. The smoke ventilation systems control the spread and diffusion of pollutants inside the factory through means such as ventilation and dilution, ventilation and dust removal. Generally speaking, the factory smoke exhaust ventilatior (air inlets, exhaust outlets, air supply ducts, fans, filters, control systems and other auxiliary equipment) should be installed at the ridge line to ensure good ventilation and smoke exhaust effects.