Nitrogen (N2) is a colorless, odorless and tasteless gas that makes up 78.09% (by volume) of the air we breathe.  It is nonflammable and it will not support combustion.

More nitrogen is used by customers than any other industrial gas.  It is used in a broad range of industries, including chemicals, pharmaceuticals, petroleum processing, glass and ceramic manufacture, steel-making and other metals refining and fabrication processes, pulp and paper manufacture, and healthcare.  Aside from N2, nitrogen may be referred to as GAN or GN in its gaseous form, and LIN or LN in its liquid form..