Using helium-based breathing gases, the TDI Trimix Instructor Course delivers the training required to teach trimix diving that requires staged decompression. Utilizing gases containing no less than 18% oxygen, candidates will complete the four required dives up to 60 metres/200 feet. As part of the course topics you may be asked to present include:
- Nitrogen narcosis
- Helium absorption and elimination
- Counter diffusion
- Dive planning
- Gas switching procedures
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