Instructions for the Use and Maintenance of PSA Nitrogen Generator Packing Carbon Molecular Sieve Nitrogen is the most abundant gas in the air, and it is an infinite source that can be used endlessly. It is colorless, odorless, transparent, and belongs to the category of weakly reactive gases, which cannot sustain life. High-purity nitrogen gas is often used as a protective gas to isolate oxygen or air. The content of nitrogen (N2) in air is 78.084% (the volume fraction of various gases in air is: N2:78.084%, O2:20.9476%, argon:0.9364%, CO2:0.0314%, and other rare gases such as H2, CH4, N2O, O3, SO2,…