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Helitrox CCR in worldwide: 35 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 18 publish course prices.
TecDiveTools lists 35 dive centres teaching Helitrox CCR worldwide. 18 of them publish course prices, in the currency the shop advertises and with the date each was checked — not converted, and not estimated.
Listings are ordered by how much evidence exists about their technical diving, not by a star rating, with any paid Featured listing shown first and marked as such (how rankings work). 30 of these 35 carry reviews we have read and classified as being about technical or overhead training. The count excludes recreational certifications by name, so a busy resort does not outrank a one-instructor cave operation on the volume of its reef trips. Separately, 25 have at least one instructor whose reviews we have read and summarised — a dive centre carries no synthesis of its own. How we read and count reviews.
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About the course
DIVER-TIER CORRECTION: Entry-level closed-circuit rebreather certification using helium-diluted mix (up to 35% helium, minimum 20% oxygen) for no-decompression CCR diving to 45m/150ft. Teaches helium-diluent-specific pre-dive checks, gas planning, and bailout procedures on a rebreather unit. Designed for nitrox-certified divers wanting narcosis relief with helium on a CCR without committing to decompression diving. Opens the door to Helitrox CCR Decompression Procedures.
Divers must demonstrate competent pre-dive checks, gas planning for helitrox mixes, emergency bailout procedures, buoyancy control, and unit-specific operation in confined and open water conditions.
35 dive centres on TecDiveTools teach TDI Helitrox CCR worldwide: Egypt (7), Indonesia (7), Malta (6), United States (5), Philippines (4) and Mexico (3), and 1 more. Each is listed above.
Published prices for TDI Helitrox CCR worldwide range across 2 centres in the TecDiveTools directory — roughly US$1,300 to US$1,700 at current exchange rates. In each centre's own currency: €1,200 (1 centre) and IDR 29,700,000 (1 centre). Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
7 days, based on the durations 1 centre publishes for it worldwide. 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.
At the same tier in TecDiveTools' cross-agency comparison, dive centres worldwide also teach IANTD CCR Advanced Recreational Trimix Diver (20) and SSI XR CCR Extended Range Trimix (1). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.
