MZ/RMZ type gas booster fan is new gas exhaust based on development tendency of two-period form gas stove, and combine the one stage gas stove. It has lower noise, flat performance curve, high flow control area, high efficiency, low power consumption, reliable sealing and stable operation. It is applicable to elevated pressure for factories and mines gas station, blast furnace gas, coke oven gas, and converter gas, as well as airtight rigorous gas such as ammonia gas or marsh gas. Parameter range of the products: The temperature of the medium is within 400. General pressure range from 100-2500mmH O; general flow range from 60-500m/min.