TDI Helitrox Diver

The 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. 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 metres / 150 feet. The most common equipment requirements, gear set-up, and decompression techniques are presented.

What can you expect to learn?

Gas requirements
Oxygen limitations
Nitrogen limitations
Helium limitations
Decompression gas choices
Helium as a breathing gas
Effects on narcosis
Effects on respiration
Effects as an insulator
Counter diffusion
HPNS
Decompression diving procedures
Equipment selection
Pre-dive checks and drills
Following a decompression schedule
Gas switching
Team awareness and communication
Proper trim, buoyancy, and propulsion techniques
Emergency procedures
Equipment considerations
Gas blending procedures

Course Prerequisites

Minimum age 18 years old
Certified as an Advanced Open Water Diver, Adventure Diver with Deep specialty, TDI Intro to Tech or equivalent
Certified as TDI Advanced Nitrox Diver (unless being taught concurrently)
Proof of 50 logged open water dives