Membrane separation technology depend on different gas are different in membrane dissolve and spread to realize gas Separate. Mixed gas via driving force Under the pressure difference , permeate speed such as Oxygen, moisture,Hydrogen Carbon dioxide etc gas through the membrane, it will be gathered in the membrane side, while permeate speed quite Slowly gas such as Nitrogen, argon gas etc gas will be stay in the membrane be detained, to achieve mixed gas separation Membrane separation nitrogen generator according to this principle, based on compressed air as raw material to get Required purity Nitrogen gas