Photo by Teemu Virtanen · CC BY-SA 3.0
Hypoxic Trimix
Master hypoxic trimix (reduced-oxygen) gas applications for the deepest technical extended-range diving, managing extreme narcosis and precise PO2 control. This specialized course teaches precise hypoxic trimix calculations and gas blending, extreme narcosis management through strategic gas selection, hypoxia recognition and prevention, and complex bailout procedures for very deep technical dives. Hypoxic Trimix qualifies you for extreme technical diving within recreational limits.
Centres that teach this course
4 dive centres in the directory publish a price for this exact certification, checked Sep 2026. Each centre's own wording is shown beneath its name. Ranges cover whole-course prices only — where a centre charges per day or per dive, its rate is listed separately below, since a daily figure is not comparable with a course total.
- €800total
- €995total
- €850total
- €1,400total
- €980total
- €1,250total
- €1,250total
Same training under a different agency
22 centres
A separate set of centres, teaching Hypoxic / Advanced Trimix under a different agency. These are not the same certification — the standards and the card differ — but they cover the same depth and scope, which is why centres price them alike. Every row here names whose rating it is, and none of them is counted above.
- €1,100total
- €5,000total
- €995total
- €5,000total
- €5,000total
- €995total
- €1,050total
- €900total
- €2,475total
- €1,650total
- €1,275total
- €2,250total
- $2,000total
- $1,900total
- $1,590total
- $756total
Charged by the day or dive rather than as a course price:
- Protec MexicoMexicoTrimix Level 2PSAI1 student$470/day→ $2,820 for the 6-day minimum2+ students$420/day→ $2,520 for the 6-day minimum each$470per day
- $295per day
- Cave AdventurersUnited StatesAdvanced TrimixTDIPrivate class$550/day→ $2,200 for the 4-day minimumGroup class$450/day→ $1,800 for the 4-day minimum each$550per day
- Under The JungleMexicoAdvanced TrimixTDIprivate$345/day→ $1,725 for the 5-day minimumper diver in a group$295/day→ $1,475 for the 5-day minimum each$345per day
- THB 63,000total
- THB 60,000total
- THB 60,000total
- THB 50,000total
- IDR 17,000,000total
- IDR 20,700,000total
- IDR 20,700,000total
Same tier, agency not stated
5 centres
These centres publish a price for Hypoxic / Advanced Trimix, but their own wording does not say which agency's certification it buys — many teach several and name the card only once you enquire, and some price one course for either agency. The figure is comparable; the certification is not identified, so we do not guess at one.
- THB 60,000total
- THB 60,000total
- THB 80,000total
- €1,800total
- $2,400total
These prices are not like-for-like. Two centres can charge very differently for the same certification because they include different things. One price may cover twinsets, stages, deco gas and cylinder rental for every training dive, a dedicated classroom for the theory, boat or transport to the site, and the agency's registration and materials; another may be tuition only, with all of that charged separately — or the other way round, with a centre bundling in extras the first leaves out. Class size, whether the course is one-to-one, and how many days are allowed for it move the figure too. Check what each centre's price includes before comparing them, and confirm with the centre before booking.
Consumables are usually extra. Sorb, helium, O₂ and other fills, park and cenote fees, certification fees and rental are commonly charged on top.
Packages combining several certifications, upgrades from an existing one, and open-ended day rates are excluded — none of them is the standalone price of this course, and including them would move the figures away from what a new student can actually book.
Prerequisites
Technical Extended Range Trimix certification, minimum 100 logged dives total, minimum 30 logged dives deeper than 30 meters.
No instructors or dive centres found offering this course.
We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.
Common questions about SSI XR Hypoxic Trimix
How much does SSI XR Hypoxic Trimix cost?
Published prices for SSI XR Hypoxic Trimix range across 4 centres in the TecDiveTools directory. That is €800–€1,400 (4 centres). Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
How long does SSI XR Hypoxic Trimix take?
Between 5 and 7 days, based on the durations 2 centres publish for it. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.
What are the prerequisites for SSI XR Hypoxic Trimix?
SSI XR's standards require: Technical Extended Range Trimix certification, minimum 100 logged dives total, minimum 30 logged dives deeper than 30 meters.
How many dives do I need before starting SSI XR Hypoxic Trimix?
SSI XR's standards state: Minimum 100 logged dives total.
What is the equivalent of SSI XR Hypoxic Trimix in other agencies?
At the same tier in TecDiveTools' cross-agency comparison: TDI Advanced Trimix, PSAI Explorer Trimix, RAID Hypoxic Trimix, PADI TecRec Tec Trimix Diver and IANTD Trimix Diver. They cover comparable training, but each agency sets its own standards, depth limits and certification card, so they are comparable rather than interchangeable — check which one your next course accepts.
Does the price of SSI XR Hypoxic Trimix include gas and equipment?
Not always — it varies by centre. Helium, certification fees, equipment rental and boat or site fees are commonly charged on top of the course price. Each centre's price list on TecDiveTools shows what it notes as included.