TDI Advanced Nitrox Instructor

The TDI Advanced Nitrox Instructor course is for instructors wishing to teach the use of EAN-21 through 100 percent oxygen (O₂) for optimal mixes to a depth of 40 m. The object of this course is to train nitrox instructors to teach the benefits, hazards and proper procedures for EAN-21 through 100 percent oxygen (O₂) for dives not requiring staged decompression. The TDI Adv. Nitrox Instructor Course enables you to teach one of the core courses of the TDI System.

Prerequisites TDI Advanced Nitrox Instructor :
  • Min. 18 years old
  • Min. TDI Advanced Ntrox diver or equivalent
  • proof of 100 logged dives, 25 must be nitrox dives
  • Must have certified 10 students in entry-level nitrox


  • Dives: 4 open water dives
  • Total bottom time: 100min
  • All dives must be deeper than 23m
  • Two dives must be deeper than 30m
  • Min. number of classroom and briefing hours is 6

NOTE: The TDI Adv.EANx Diver Course may be combined with TDI Decompression Procedures Course (total of min. 6 dives are required

To complete this course,
students must:

  • Satisfactorily complete the TDI Adv.EANx course written examination and be able to adequately explain each answer to a prospective student
  • Demonstrate mature, sound judgment concerning training, dive planning and execution
  • Demonstrate proficiency in every skill required in the TDI Adv.EANx course
  • Demonstrate proficiency in teaching advanced nitrox
  • Present at least 1 graded presentation on advanced nitrox topic