Membrane nitrogen generators are suited for low-flow applications that presently employ high-pressure gas cylinders or dewars of nitrogen. With Membrane Nitrogen Generators (PMNG), the inconvenience of gas cylinders and liquid dewars is eliminated.If you are interested in a membrane nitrogen generator, CGT can help.1-877-737-7760 nitrogen-generators.comCast: Nitrogen GeneratorsTags: nitrogen generators, membrane nitrogen generators, nitrogen gas generation and how membrane generators work