99.99% Purity - Do I Really Need It?

It’s common for gas companies and nitrogen generator providers to tout the idea that 99.99% pure nitrogen is the level of purity needed for all applications. On one hand, this is understandable; almost every application (with few exceptions) will work with 99.99%, as it guarantees that there are very few impurities in the N2 produced. However, what this doesn’t acknowledge is that the nitrogen purity needed is based on unique application requirements – and that the purer the nitrogen needed, the higher the cost.