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The TDI Advanced Trimix Course provides the training required to
competently and safely utilise breathing gases containing helium for dives that
require staged decompression, utilising Nitrox and/or oxygen mixtures during
decompression to a maximum depth of 100m. The objective of this course is to
train divers in the benefits, hazards and proper procedures of utilising custom
O2/He/N2 mixtures as breathing gases.
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