Glass steel negative pressure fan is a new type of ventilation equipment manufactured using corrosive glass steel materials, belonging to the axial flow fan, because the outer frame of the fan uses corrosive glass steel materials, working principle is to use negative pressure to change air, achieve air circulation, ventilation cooling purpose, so it is called glass steel negative pressure fan. Glass steel negative pressurized wind machine has corrosion resistance, large wind volume, low energy consumption, low rotation speed, low noise and other characteristics. Glass steel negative pressurized wind machine has corrosion resistance, large wind volume, low energy consumption, low rotation speed, low noise and other characteristics.