Photo by Teemu Virtanen · CC BY-SA 3.0
Normoxic Trimix Diver Plus
An advanced extension of Normoxic Trimix certification enabling deeper technical dives using normoxic trimix mixtures with refined gas-switching skills and complex decompression profiles. This course builds on existing Normoxic Trimix foundation with additional deep technical dives demonstrating consistency and mastery in challenging depth and gas scenarios. Requires demonstrated advanced proficiency before enrollment.
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.
- THB 55,000total
- Pattaya Scuba Club (by BB Marine)ThailandTDI Trimix / IANTD Normoxic Trimix & PLUSone price, several agenciesTHB 49,000total
- Phuket Scuba Club (by BB Marine)ThailandTDI Trimix / IANTD Normoxic Trimix and PLUSone price, several agenciesTHB 49,000total
- €920total
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
Normoxic Trimix Diver certification. Proof of demonstrated deep technical dive experience and proficiency. Exact enrollment requirements not independently confirmed from official IANTD sources.
Instructors Teaching This Course
United States
Mexico
Thailand
Indonesia
Other locations
Dive Centres Offering This Course
Thailand
Mexico
United States
Indonesia
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 IANTD Normoxic Trimix Diver Plus
How much does IANTD Normoxic Trimix Diver Plus cost?
Published prices for IANTD Normoxic Trimix Diver Plus range across 4 centres in the TecDiveTools directory — roughly US$1,000 to US$1,650 at current exchange rates. In each centre's own currency: THB 49,000–55,000 (3 centres) and €920 (1 centre). 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 IANTD Normoxic Trimix Diver Plus take?
6 days, based on the durations 1 centre publishes 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.
Where can I take IANTD Normoxic Trimix Diver Plus?
24 dive centres and 35 instructors in the TecDiveTools directory teach IANTD Normoxic Trimix Diver Plus, in the United States, Mexico, Thailand and Indonesia. Each is listed further up this page.
Does the price of IANTD Normoxic Trimix Diver Plus 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.