Photo by U.S. Navy — Navy Diver 2nd Class Brian Williams · Public domain (work of the U.S. federal government)
Tec Gas Blender
Master the science and practice of blending custom breathing gases—a critical skill for technical divers and training professionals. This classroom-focused specialty course covers gas blending theory, equipment setup and maintenance, oxygen-safe practices, and certification of blended gases for use in technical diving. You'll learn to calculate precise nitrox and trimix blends, manage compressor systems, and follow regulatory safety protocols for gas handling. Tec Gas Blender is essential for anyone planning to use custom gas mixes or for dive centers and instructors who need to maintain on-site gas blending capabilities.
Centres that teach this course
6 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.
- €80total
- €105total
- €190total
- THB 17,000total
- THB 9,000total
- ₱18,000total
Same training under a different agency
9 centres
A separate set of centres, teaching Gas Blender (nitrox) 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.
- €250total
- €150total
- €175total
- €200total
- IDR 5,500,000total
- IDR 3,000,000total
Charged by the day or dive rather than as a course price:
- $200per day
- THB 10,000total
- ₱18,000total
Same tier, agency not stated
4 centres
These centres publish a price for Gas Blender (nitrox), 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.
- €250total
- €105total
- IDR 5,500,000total
- $199total
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
PADI Enriched Air Diver (or equivalent), 18 years old
Standards
What a diver must demonstrate to pass this course — not always published by the certifying agency.
Calculate and blend enriched air nitrox and trimix gases safely; operate and maintain gas blending equipment; verify gas purity and composition; follow oxygen-safe procedures and regulatory requirements
Instructors Teaching This Course
Thailand
Indonesia
Dive Centres 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 PADI TecRec Tec Gas Blender
How much does PADI TecRec Tec Gas Blender cost?
Published prices for PADI TecRec Tec Gas Blender range across 6 centres in the TecDiveTools directory — roughly US$80 to US$550 at current exchange rates. In each centre's own currency: €80–€190 (3 centres), THB 9,000–17,000 (2 centres) and ₱18,000 (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 PADI TecRec Tec Gas Blender take?
Between 1 and 2 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 PADI TecRec Tec Gas Blender?
PADI TecRec's standards require: PADI Enriched Air Diver (or equivalent), 18 years old.
What is the minimum age for PADI TecRec Tec Gas Blender?
PADI TecRec's standards state: 18 years old.
What does PADI TecRec Tec Gas Blender training involve?
According to PADI TecRec's published standards: Calculate and blend enriched air nitrox and trimix gases safely; operate and maintain gas blending equipment; verify gas purity and composition; follow oxygen-safe procedures and regulatory requirements.
What is the equivalent of PADI TecRec Tec Gas Blender in other agencies?
At the same tier in TecDiveTools' cross-agency comparison: IANTD EANx Gas Blender, RAID Gas Blender and TDI Nitrox Gas Blending. 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.
What course comes after PADI TecRec Tec Gas Blender?
The next step in PADI TecRec's progression is PADI TecRec Tec Trimix Gas Blender.
Where can I take PADI TecRec Tec Gas Blender?
3 dive centres and 3 instructors in the TecDiveTools directory teach PADI TecRec Tec Gas Blender, in Thailand and Indonesia. Each is listed further up this page.
Does the price of PADI TecRec Tec Gas Blender include gas and equipment?
Not always — it varies by centre. 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.