It can be used as general air flow, that is to say, it is applicable to indoor ventilation of the factory and large buildings. The equipment can also be used in eliminating smoke and dust and air-blasting in the boilers etc. Machine No.:3A~20E (14 kinds in all) Total Pressure: 176~3136Pa Flow: 850~408000 cubic meters per hour We think it will be a better and faster communication if you can give us the details as follows: Flow, Pressure, rpm, Power and temperature.