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Trimix in the Philippines: 12 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 2 publish course prices.
TecDiveTools lists 12 dive centres teaching Trimix in the Philippines. 2 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). 10 of these 12 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, 7 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.
Looking for individual instructors instead? Instructors in Philippines.
About the course
Trimix is TDI's foundational mixed-gas course, teaching divers to plan and execute decompression dives using custom oxygen/helium/nitrogen breathing gas mixtures. This course bridges Extended Range and deeper technical diving, introducing divers to trimix theory, helium physiology, staged decompression on multiple gas mixes, and the procedures for managing hypoxic and normoxic blends. Graduates can conduct trimix dives to 60m/200ft with proper decompression support.
Students complete 4 decompression dives using trimix as bottom gas (100+ minutes accumulated bottom time; 2 dives must exceed 40m/130ft depth), demonstrating mastery of: trimix gas physics and physiology, decompression calculations on multiple gas mixes, proper equipment configuration, safe gas switches at depth, emergency ascent procedures, and staged decompression execution.
The centres listed above teach TDI Trimix in Philippines. Requirements are set by the agency, not the centre, so they are the same wherever you train — what differs is price, class size and how much diving is included.
12 dive centres on TecDiveTools teach TDI Trimix in the Philippines: Puerto Galera (3), Moalboal (2), Anilao (1), Cebu (1), Dauin (1) and Malapascua (1), and 3 more. Each is listed above.
Walls off Moalboal and the drop-off beyond Malapascua's Monad Shoal reach technical depths close to shore, and Coron's Irako gives deep decompression dives a wreck to work on.
One centre in the TecDiveTools directory publishes a whole-course price for TDI Trimix in the Philippines: Tech Asia, at ₱54,000. Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
4 days, based on the durations 1 centre publishes for it in the Philippines. 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 in the Philippines also teach RAID Normoxic Decompression (1). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.
