TDI HOLLIS PRISM 2 Helitrox CCR Decompression Diver Course
Train with Warrior Dive Adventure – Explore Up to 45 Metres with Mixed Gas on the Hollis PRISM 2 CCR
Take your technical diving deeper with the TDI PRISM 2 Helitrox Decompression Diver Course, offered by Warrior Dive Adventure. This course is your second-level entry into closed circuit rebreather (CCR) diving, focused on using helitrox gas blends (helium + oxygen + nitrogen) for formally planned decompression dives.
This advanced-level training allows you to dive to a maximum depth of 45 metres using air/nitrox/helium as a diluent and up to 100% oxygen for decompression. The course builds critical CCR diving skills, deepens your understanding of rebreather systems, and prepares you for longer, deeper, and more complex dives with confidence and safety.
Why Choose the PRISM 2 Helitrox CCR Course?
The Hollis PRISM 2 CCR is one of the industry’s most trusted rebreathers, engineered for technical and expedition diving. This course is the ideal next step for:
Divers wanting to extend bottom time at depth
Those seeking a transition to helium-based mixed gases
CCR divers ready to engage in staged decompression
Divers training toward full trimix or advanced exploration certifications
With expert instruction from TDI-certified trainers at Warrior Dive Adventure, you’ll master the techniques and planning required to handle CCR decompression procedures using helitrox with up to 20% helium and no less than 21% oxygen.
Who Should Take This Course?
This course is perfect for:
Certified CCR divers seeking decompression capability
Divers looking to expand range and depth safely
Technical diving students preparing for trimix certification
PRISM 2 users who want to maximize their rebreather’s capabilities
Course Prerequisites
To enroll, candidates must meet one of the following:
Pathway A – Open Circuit to CCR:
Minimum age: 18 years
Certified in TDI Advanced Nitrox & Decompression Procedures (or equivalent)
Proof of at least 50 logged dives
Pathway B – Existing CCR Divers:
Minimum age: 18 years
Certified as a TDI Air Diluent CCR Diver (unit-specific)
At least 30 hours on the PRISM 2 CCR
Minimum six months of CCR diving experience
What You’ll Learn
The PRISM 2 Helitrox Decompression Diver Course includes advanced CCR skills and decompression techniques such as:
Unit-specific CCR configuration and pre-dive checks
Dive planning using helitrox diluents with up to 20% helium
Use of 100% oxygen for staged decompression
Emergency scenarios and bailout strategies
Dive monitoring using CCR computers and backup systems
Gas management, CNS/OTU tracking, scrubber awareness
Navigating deep dives with real-world applications up to 45 metres
Course Schedule
| Day | Topics Covered |
|---|---|
| Day 1 | Orientation, theory, equipment assembly & critique, confined water session |
| Day 2 | Open Water Dives 1 & 2 |
| Day 3 | Open Water Dives 3 & 4 |
| Day 4 | Open Water Dives 5 & 6 |
| Day 5 | Final Dive 7 & Written Theory Exam |
💡 Need a Nitrox Analyzer or other CCR tools?
Browse our online dive shop for essential gear tailored to technical rebreather diving.
Course Fee
AUD $1999.00
Includes instructor-led training, confined and open water dives, and certification processing.
(Gases, sorb, equipment rental, and consumables not included.)
Where to Go Next
Graduates of this course are fully prepared to continue their journey into advanced and expedition-level CCR diving with:
TDI PRISM 2 Mixed Gas Diver (60m) – Train with deeper trimix gas blends on your PRISM 2 CCR
TDI Advanced Trimix Diver – Push the limits beyond 60 metres with full mixed gas capabilities
Enroll in the TDI PRISM 2 Helitrox Decompression Diver Course Today
If you're ready to step into deeper technical diving using the powerful Hollis PRISM 2 Rebreather, this course will give you the confidence, safety, and technical edge you need. Dive deeper, stay longer, and explore more with Warrior Dive Adventure—your go-to dive center for TDI rebreather training on the Great Barrier Reef and beyond.
👉 Contact us now to book your training, inquire about CCR packages, or speak with one of our instructors about your rebreather goals.