Trimix
Trimix is any gas mixture whose primary components are oxygen, nitrogen and helium. Using helium to dilute the nitrogen content of a gas mixture is the only safe way to reduce the effects of narcosis at depth.
The Trimix Diver course is designed to provide you with the knowledge and skills needed to safely dive helium-based gas mixtures as deep as 200 feet.
The course generally takes at least two days and four dives. You can sign up in person, over the phone or online by clicking the button below. If you sign up online, you will still need to call to schedule your class.
This program generally takes at least two days and four dives. With sufficient notice, we can usually offer this course when it’s most convenient for you.
- Be at least 18 years old
- Be certified to at least the Advanced Nitrox and Deco Procedures levels.
- Be able to answer No to all the questions on the medical history questionnaire or obtain a physician’s approval for diving.
Course fee includes:
- All instruction (eLearning course fee is additional)
- Certification processing when earned
Course fee will vary depending on factors such as:
- Course location
- Boat fees
- Additional courses you may combine this with
Let us know what your goals are and we can custom-tailor this course to best meet your needs.
You supply:
- Mask
- Adjustable scuba fins
- Adequate exposure protection for depth and water temperature
- Backmounted doubles with isolation manifold
- Backplate or dual-cylinder harness and air cell
- Two regulator first stages, each with its own second stage
- At least two decompression cylinders
- Mission-capable dive computer(s)
- Underwater compass
- Dive knife/cutting tool(s)
- Primary and backup dive lights
- SMB and reel or spool
Be aware that equipment for technical diving must meet some very specific requirements. Do not make any equipment purchases before first consulting with your instructor.
Students are also responsible for gas fills and boat fees or dive site admission.
Trimix is any gas mixture whose primary components are oxygen, nitrogen and helium. Using helium to dilute the nitrogen content of a gas mixture is the only safe way to reduce the effects of narcosis at depth. Doing so, however, comes at a cost.
- Helium ingases and outgases two and a half times faster than nitrogen does. This results in different decompression schedules.
- Helium is expensive and, in some parts of the world, hard to come by.
The Trimix Diver course is designed to provide you with the knowledge and skills needed to safely dive helium-based gas mixtures as deep as 200 feet.
At this level of training, such mixtures must contain a minimum of 18 percent oxygen. This means you can brief them in shallow water without risk of hypoxia.
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