Don't Be Reluctant to Use Air: It's What We Did When That's All We Had

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From time to time, we see divers get upset when they learn there is no nitrox and they must dive on air. It's no big deal.

Enriched air nitrox (EAN, EANx) was revolutionary when in the late '80s, it became available for sport divers. Some training agencies were suspicious of it, but by the early '90s, it became almost universally used as the de-nitrogenizing semi-permeable membrane system for producing nitrox became standard; it simplified its production and removed the fire hazards associated with the former partial pressure blending using pure oxygen....

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