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The course examines the use of EAN-21 through to 100% oxygen for optional mixes to a depth of 40 msw (Metres Sea Water). The objective of this course is to train divers in the benefits, hazards and proper procedures for utilising EAN-21 through to 100% oxygen for dives not requiring staged decompression.
This course examines the theory, methods and procedures of planned stage decompression diving. This program is designed as a stand alone course or it may be taught in conjunction with such TDI courses as Advanced Nitrox. The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of forty five (45) msw (Metres Sea Water). The most common equipment requirements, gear set-up and decompression techniques are presented. Students are permitted to utilise EANX mixtures or oxygen for decompression provided that the gas mix is within their current certification level.
 
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