TDI Advanced Nitrox & Decompression Procedures (Helitrox) – Warrior Dive Adventure
Learn to Dive to 45 Metres with Full Decompression Training
The TDI Advanced Nitrox & Decompression Procedures (or Helitrox) Combined Course is Warrior Dive Adventure’s signature technical diving program. Designed for divers who want to push their limits, this course certifies you to dive to 45 metres (150 feet) using Air or Helitrox, and to conduct staged decompression using Nitrox 50% and 100% oxygen.
You’ll learn to manage up to four cylinders, plan complex dives, and react confidently to simulated emergencies—all under expert guidance from our Trimix- and CCR-certified instructors.
Why Choose Warrior Dive Adventure?
Our instructors go beyond agency minimums to ensure you're ready for real-world decompression diving. Through intensive training that includes realistic failure simulations, we prepare you to stay calm under pressure and use advanced protocols with confidence.
We specialize in sidemount and twinset training, gear configuration, gas switching, and redundancy-focused decompression diving—skills essential to becoming a truly self-sufficient technical diver.
Why Upgrade to Helitrox?
While air is still allowed for this course, Helitrox is a safer and more efficient choice. By adding helium:
You reduce narcosis at depth (lower Equivalent Narcotic Depth – END)
Improve breathing gas density and comfort
Maintain better cognitive ability and awareness
Meet requirements for cave and deep technical environments where Trimix is mandatory
Who Should Take This Course?
This course is for certified divers who want to:
Dive to 45 metres with full decompression capability
Improve their safety and control using Helitrox and redundant gas systems
Gain a strong foundation for TDI Extended Range, Trimix, or CCR courses
Learn sidemount or twinset decompression diving from experienced tech instructors
Prerequisites
Certified Nitrox and Deep Diver
Minimum 50 logged dives, including:
10 deeper than 30m
10 dives in the last 12 months
Sidemount certification (if training in sidemount) or enrolled in sidemount course
Completed diving medical questionnaire
What’s Included
TDI eLearning: Advanced Nitrox + Deco Procedures (or Helitrox)
Full classroom dive planning & gear configuration session
Minimum 6 open water dives, including:
2 deeper than 30m
2 with staged decompression
Use of Air, Helitrox, Nitrox 50%, and 100% Oxygen
Dive site entry permits
Certification as a TDI Advanced Nitrox and Decompression Procedures or Helitrox Diver
What You’ll Learn
Dive Planning & Skills:
Planning dives to 45m with mandatory decompression
Gas switching using two deco cylinders
Oxygen tracking (CNS/OTU)
Simulated problem-solving with realistic drills
Controlled ascents and emergency management
Loop drills, bailout strategy (if sidemount), and full redundancy
Equipment & Safety:
Twinset or sidemount gear configuration
Stage rigging, deco regulators, and cylinder handling
Pre-dive checklists and team procedures
Fail-safe protocols for gas switches and decompression stops
Course Schedule
| Day | Details |
|---|---|
| Day 1 | 9:00 AM – 5:00 PM: Theory, Gear Setup, Dive 1 |
| Day 2 | 9:00 AM – 5:00 PM: Deco Theory, Dives 2 & 3 |
| Day 3 | 9:00 AM – 5:00 PM: Dives 4 & 5 |
| Day 4 | 9:00 AM – 5:00 PM: Dive 6 & Final Review |
💡 Need Deco Regulators or Stage Cylinders?
Check out our online dive store for technical diving gear and setup packages.
Certification Outcome
After completing this course, you will be certified to:
Perform decompression dives to 45 metres
Use Air or Helitrox as bottom gas
Carry and switch between two deco cylinders, including 100% oxygen
This course provides the knowledge and practical skills to dive to the very limit of this certification with complete confidence and redundancy.
Continue Your Technical Dive Training
Once certified, you’ll be ready to enroll in:
TDI Extended Range Diver Course – Dive deeper to 55m using air and multiple stages
TDI Trimix Diver Course – Use helium-based gases to explore to 60 metres
Enroll Today with Warrior Dive Adventure
If you’re ready to master decompression diving and become a confident, capable technical diver, the TDI Advanced Nitrox & Decompression Procedures (Helitrox) Course is your path forward.
👉 Contact us today to secure your spot, ask about rental gear, or speak with one of our experienced instructors.