KS - 800 from electric turbines, fan is set in industrial workshop on both sides of the roof top ventilation equipment, it can promote industrial workshop, the internal and external heat from the workshop, and introduced the hottest air cold air convection, fill complement and lower temperature, when ventilation workshop phenomenon occurs, the fresh air would flow from the ventilator, the roof into vent, cold fresh air in the room, can absorb flows around the house, the quantity of heat of the path through the air temperature near the lower, so will the turbine fan balanced along the roof installation, proper distribution of heat flow channel, can develop more reduce indoor temperature effect. Will also plant HuiQi, moisture, dust or harmful gas discharge outdoor, 24 hour from electric fan can add enough fresh air, promoting the building of outdoor air circulation, improve the working environment, guarantee a worker health. Good ventilation environment makes humoral liquid evaporated, Have a natural cooling effect, so as to avoid the waste heat caused by the backland reaction, improve the quality and efficiency of work.