Triumph fan of natural roof fan is installed in industrial plants on both sides of the top of the roof ventilation equipment, it can promote the heat exchange of the inside and outside the industrial plant, can effectively discharge the hot air inside the plant, and the introduction of the outdoor cold air to fill the auxiliary formation of air flow and reduce the temperature of the plant, when the ventilation phenomenon occurs, fresh air from the vents into the exhaust port of the flow to the roof cooler fresh air flowing through the house, the house around will absorb heat and air flow by the path near the temperature decreases, so the balanced turbo fan is installed along the roof of the appropriate allocation of hot air pathway can give full play to reduce the effect of room temperature. Moisture within the plant, bad smell, vapor, dust or harmful gases exhausted to the outside, 24 hours free electricity to supplement adequate outdoor fresh air, the promotion of plant air circulation convection, improve the working environment to protect the workers' physical health. Good ventilation so that the evaporation of body fluids; played a natural cooling effect before, in order to avoid the discomfort caused due to heat poor response and improve the quality of work and efficiency