It has low-noise, large air volume. High total pressure.2. Safe structure, easy installation and repair, occupying small area etc.3.It is used in the environment where ventilation is needed or used in fitting equipment, such as the ventilationof mineral factory, hotel and restaurant and the hot-air circulation of grain coordinated-process.4.16models.5. Air voluma: 900-11O00m3/h.6.Total pressure 294-1471Pa