This Program is designed to train divers to conduct dives to depths between 30 m and, at the instructor’s option, up to 51 m using custom blend breathing gas mixtures. To provide greater understanding of custom blend breathing gas mixtures, a complete knowledge of the limits of any EANx mixture, and the use of EANx and oxygen for decompression. The knowledge and skills taught in this program are more than adequate to qualify divers to perform dives outside of training up to 51 m.


  • Must be qualified in IANTD Advanced EANx Diver or equivalent
  • Proof of a minimum of 100 logged dives, of which at least 30 were deeper than 27 m.

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