Technical Diving International (TDI)
TDI is a professional diving organization that specializes in technical diving education and certification.
Offered Certifications & Progression
- Intro to Tech — 40m (130ft), Air / Nitrox up to 40%
- Advanced Nitrox Diver — 40m (130ft), EANx21 up to 100% pure oxygen for stage/decompression use
- Decompression Procedures Diver — 45m (150ft), Air / Nitrox / O2 for deco
- Extended Range Diver — 55m (180ft), Air or Enriched Air Nitrox; up to 2 decompression stage cylinders up to 100% O2
- Trimix Diver — 60m (200ft), Normoxic Trimix
- Advanced Trimix Diver — 100m (330ft), Hypoxic Trimix bottom gases (<18% O2); appropriate travel gases and at least 2 to 3 deco stages with up to 100% O2
- Helitrox Diver — 45m (145ft), Helium Mixes
- CCR Air Diluent / Decompression / Mixed Gas / Hypoxic — 100m (330ft), Air / Nitrox / Trimix / O2 (CCR)
- Advanced Wreck — 55m (180ft), Air
- Cavern / Cave / Full Cave — 40m (130ft), Air
- Technical Sidemount — 40m (130ft), Air