TDI courses

Advanced Nitrox

This course examines the use of EAN 21 through 100% (oxygen) for optimal mixes to a depth of 40m. This course trains divers in the benefits, hazards and proper procedures for utilizing EAN 21 through 100% (oxygen) for dives not requiring staged decompression. However, decompression techniques may be combined with this course at the discretion of the instructor.

Decompression Procedures

This course examines the theory, methods and procedures of planned stage decompression diving. The objective is for divers to learn how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45m. Key topics include common equipment requirements, gear set-ups, decompression techniques and decompression mixtures (including oxygen and nitrox).

Extended Range

This course teaches divers how to competently use air for dives to a maximum depth of 55m that require staged decompression, using nitrox mixtures and oxygen during decompression.