This program is designed to extend the divers knowledge in the use of Nitrox for Sport Diving.   The program employs Nitrox mixtures from 21% to a maximum of 50% oxygen.  This program also introduces the Deep Diver to the use of Helium based mixtures with the use of Trimix  that maintains an Equivalent Nitrogen Depth of 80 fsw or less.  The program qualifies divers to perform Trimix Dives outside of training to 150 fsw and perform required decompression stops up to 15 minutes using EAN 50% as a decompression gas.

Prerequisites:          IANTD Advanced Nitrox Diver

                                      30 Logged Dives

Program Content:   120 Mins. Min. of OW Bottom Time over 4 Dives

                                       2 Dives between 100 fsw and 150 fsw