Negative Pressure Fan

1, a large wind fan Han - co-production of advanced technology imported from Italy 2, wind, low noise, low energy consumption, smooth running, long life 3, Great Han Feng Fan (1.1kw) air volume = traditional fan (0.55kw) wind × 10 4, shutters can be automatically / manually open and close, dust, water, beautiful 5, can in one minute to the plant within the heat and smell of dust out of room, into fresh air 6.Need to place any ventilation for chemicals, electroplating plants, etc.