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I'm good with 78% nitrogen.

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Benefits of Nitrogen explained, or in plain speak, Nitrogen molecules are larger than Oxygen/O2 molecules and leak/permeate through rubber at a slower pace, as well as expand and contract less than O2 due to Temp variations. web page I was attracted to the idea at first because as things decay, organic/inorganic, it's usually described as oxidized in one way or another..