TDI – Advanced Nitrox Diver: This course examines the use of EAN21 through to 100% oxygen for optimal mixes to a depth of 130 fsw (40msw). The objective of this course is to train divers in the benefits, hazards and proper procedures for utilizing EAN21 through 100% oxygen for dives not requiring staged decompression. Decompression procedures may be combined with this course.

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