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| Training | The Trimix Diver course provides the training required to competently and safely utilize breathing gasses containing helium for dives that require staged decompression, utilizing nitrox and/or oxygen mixtures during decompression to a maximum depth of 200 fsw. The objective of this course is to train divers in the benefits, hazards and proper procedures of utilizing custom oxygen/helium/nitrogen mixtures as breathing gasses. Gas mixes are not to have any less than 18% oxygen. The main benefit of adding helium to the breathing gas is the reduction of nitrogen narcosis. Helium has virtually no narcotic effect when breathed under pressure. So replacing some of the nitrogen in our breathing gas with helium allows a diver to maintain a clear head and normal mental processes even at considerable depth. Imagine diving to 200’ but “feeling” like it’s only 100’! The course consists of a minimum of 8 hours of classroom training and at least four decompression dives (100 minutes of accumulated bottom time minimum). Two of these dives must be deeper than 130 fsw. Usually, more than four dives are conducted and include both quarry and Great Lakes open water dives. |
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