Advanced Trimix Instructor

tdi course
Allowing dives to a maximum of 100 metres/330 feet and utilizing custom helium, nitrogen and oxygen mixes, the TDI Advanced Trimix Instructor Course is the crowning achievement for technical instructors. During the course, the instructor candidate studies a well-rounded curriculum and completes four training dives to demonstrate mastery of advanced trimix skills. Topics that candidates may be asked to present include:

  • HPNS
  • Use of travel gasses
  • Hypoxia
  • Equipment considerations
  • Dive planning
  • Omitted decompression
  • Oxygen toxicity

The TDI Advanced Trimix Instructor materials includes

  • Advanced Trimix instructor guide
  • Advanced Trimix PowerPoint®
  • TDI student record folder
  • Logo sticker
  • TDI Extended Range/Trimix manual
  • TDI presentation bag
  • TDI temporary card

Advanced Trimix Instructor Course Prerequisites

  • Minimum age 21
  • Certification as a TDI Advanced Trimix Diver or equivalent
  • Certification as a TDI Extended Range Instructor or TDI Trimix Instructor or equivalent
  • Provide proof of 250 logged dives, of which 30 must be Trimix dives
  • Provide proof of 20 dives deeper than 55 metres / 180 feet
  • And meet one of the following experience requirements:

  • Certify at least 10 extended range divers or Trimix divers to depths of at least 45 metres / 150 feet
  • Assist with at least 2 complete TDI Advanced Trimix classes taught by an active TDI Advanced Trimix Instructor and provide a letter of recommendation from the assisted instructor(s)

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pdf Course Standards & Procedures