tec diving couse from Intro to tech, Advanced Nitrox, deco procedures, tdi helitrox

TDI Helitrox in Dahab

The TDI Helitrox course examines the theory, methods, and procedures for planned stage decompression diving utilizing Helium in the breathing mixture. This program is designed as a stand-alone course or it may be taught in conjunction with TDI Advanced Nitrox at the discretion of the instructor.

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 45 m. The most common equipment requirements, gear set-up, and decompression techniques are presented. Students are permitted to utilize Enriched Air Nitrox and Helium mixes with no greater than 35% He content, and up to 100% oxygen for decompression diving provided the gas mix is within their current certification level. Breathing gas mixtures containing more than 35% Helium (+/-5%) or less than 21% oxygen are not permitted (+/- 1%).

Prerequisites TDI Helitrox:
  • SDI Advanced Diver (with Deep Dive Speciality) or TDI Intro to Tech or equivalent
  • TDI Advanced Nitrox Diver
  • proof of 50 logged dives
  • Min. 18 years old
  • 4 dives with two dives of them being over 30 m deep
TDI courses

NOTE: The TDI Advanced Nitrox Diver Course may be combined with TDI Helitrox Diver Course (total of min. 6 dives are required)