What is Helitrox?
It’s a game-changing gas mix using helium to reduce nitrogen narcosis and improve clarity on deeper dives — up to 150 ft / 45 meters. You'll learn how to plan and execute staged decompression dives using helium and nitrox, while staying safer and sharper than ever.

Why Take This Course?

• Stay down longer (legally and safely)

• Surface clearer and more refreshed

• Learn real-world decompression skills

• Ideal for spearfishing, deep reef hunting, or wreck exploration

Can be combined with TDI Advanced Nitrox — just ask! - ONLY addtional Cost: $900

This Course Is For You If…

• You’re a certified Advanced Diver or Intro to Tech Diver

• You want more bottom time without getting foggy or fried

• You’re curious about technical diving but not ready for full Trimix just yet

What You'll Learn:

• Dive planning for decompression with Helitrox

• Helium, Nitrogen, and Oxygen limits (and how to balance them)

• Choosing the right gases for depth and decompression

• Using up to 35% helium and 100% oxygen for deco

• Gear setup, gas switching, SMB deployment, emergency procedures

• How to stay calm, controlled, and in trim throughout the dive

What You’ll Walk Away With:

• The ability to do decompression dives using helium + nitrox

• A rock-solid foundation for advanced technical diving

• Eligibility for TDI Extended Range, Advanced Wreck, or Trimix

• Big upgrades in safety, confidence, and dive planning skill