Why use oxygen enriched air?
As divers for pay, our usefulness is measured in bottom time. It is our singular ability to get the job done, with the added handicap of being underwater, that differentiates us from our landlocked counterparts. Anything that allows us to safely remain on the job longer is a good thing. With oxygen enriched air we can significantly increase our bottom times without increasing our decompression obligation. This is a notable departure from oxygen enriched air for occupational scuba divers, where the primary reason for using oxygen enriched air is to limit nitrogen “on-gassing” to keep within no decompression limits.
