TDI ADVANCED TRIMIX DIVING
HYPOXIC TRIMIX
This TDI ADVANCED TRIMIX COURSE available in Phuket and Bangkok in Thailand, provides the training required to competently and safely utilize breathing gasses containing helium for dives that require staged decompression, utilizing Nitrox and/or Oxygen mixtures during decompression to a maximum depth of 330fsw/100msw.
This diving course is perhaps one of the most informative and challenging and upon completion you are among some of the most elite divers. Your TDI Instructor will teach you:
- Equipment management
- Multiple stage cylinder labelling and placement
- Complex decompression planning and contingency planning
- Dive team awareness and communication
- Gas monitoring and management
- Use of travel gasses
The TDI Advanced Trimix Course manual is one of the most up to date manuals and includes all the latest of technology and practices being used.
Student Prerequisites TDI Advanced Trimix Diving Course:
Minimum age: | 18 years |
Min certification/diver level: | Extended Range diver or Entry level Trimix or equivalent |
Min amount of dives: | 100 logged Open Water Dives |
Course Duration: | 4 days including a min of 4 dives of which 2 greater than 55 mtrs |
System: | Open Circuit twin set |
Prerogatives: | After completing the Hypoxic Trimix course, the successful candidate can engage in mixed gas diving using hypoxic oxygen contents and use multiple Nitrox gas switches (up to pure oxygen) to carry out the decompression schedule. |
Certification available through: | TDI, PADI TEC 90 |
Combination of courses: | This course in combination with the TDI Cave diving courses. In combination with the advanced trimix course, so you can go deep inside the caves in Song Hong. |
What Can I do next: | Rebreather diving or Cave Diving |


EQUIPMENT REQUIREMENTS ALL COURSES | |
Primary and secondary regulators (for back gas or Sidemount set-up) | Two stage/decompression regulators |
Mask + Back-up mask | BCD (wing) and harness or Sidemount Wing (with a min lift of 40 pounds) |
Depth gauge/computer | Timing device and backup timing device |
Appropriate exposure suit | Knife/cutting device and backup |
Two inflatable signal tubes | Reel and spool |
Slate and backup slate | Compass |
Torch and Back-up torches (Trimix Diving, Wreck diving and cave diving courses) | Hood - for Cave, Deep and Wreck Diving |
SCHEDULE TDI COURSES
COURSES: | DAY: | TIME: | LOCATION: | TO DO: | DIVE DEPTH: |
---|---|---|---|---|---|
ALL TDI COURSES | 1 | 8:30 AM 2:00 PM till 6:00 PM | CLASSROOM POOL OR BEACH DIVE | THEORY | N/A |
ALL TDI COURSES | 2 | 8:30 AM till 6 PM | BOAT | 2-3 DIVES | MAX 40 METERS |
TDI COURSES: TRIMIX LEVELS and ALL CCR LEVELS | 3 | 8:30 AM 2:00 PM till 6:00 PM | CLASSROOM POOL OR BEACH DIVE | THEORY & UNIT (for CCR) | N/A |
TDI ADV NITROX, DECO PROCEDURES & SIDEMOUNT | 3 | 8:30 AM till 6 PM | BOAT | 2-3 DIVES | MAX 45 METERS |
ALL TDI COURSES COMBINED AND FROM EXTENDED RANGE UP & CCR | 4 | 8:30 AM till 6 PM | BOAT | 2-3 DIVES | MAX 60 METERS |
ALL TDI COURSES FROM EXTENDED RANGE UP & CCR | 5 | 8:30 AM till 6 PM | BOAT & if Trimix SONG HONG CAVE | 2-3 DIVES | MAX 100 METERS |
COMBINED COURSES FROM EXTENDED RANGE UP & CCR | 6 | 8:30 AM till 6 PM | BOAT & if Trimix SONG HONG CAVE | 2-3 DIVES | MAX 100 METERS |