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Air Diluent CCR in the United States: 25 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 4 publish course prices.
TecDiveTools lists 25 dive centres teaching Air Diluent CCR in the United States. 4 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). 18 of these 25 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, 13 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 United States.
About the course
Entry-level closed-circuit rebreather certification for nitrox-certified divers transitioning to rebreather diving. Teaches unit operation, pre-dive checks, buoyancy and trim on CCR, and bailout procedures without staged decompression to 30m/100ft maximum depth. Gateway to more advanced rebreather diving.
Minimum 7 dives with 420 minutes accumulated bottom time, maximum 30m/100ft depth. Land drills: unit-specific pre-dive checks, hypoxia recognition, bailout procedures. In-water skills: CCR-specific buoyancy and trim, unit operation, bailout execution, hypoxic awareness. Competency demonstration on specific unit.
The centres listed above teach TDI Air Diluent CCR in United States. 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.
25 dive centres on TecDiveTools teach TDI Air Diluent CCR in the United States: North Florida Cave Country (11), Southeast Florida (8), Florida West Coast (Tampa Bay) (5) and Florida Keys (1). Each is listed above.
Rebreathers are common in Florida's cave community for long penetrations, and the springs' constant temperature and depth make them a practical place to build hours on a unit.
Every centre in the TecDiveTools directory that publishes a price for TDI Air Diluent CCR in the United States charges by the day rather than for the whole course. Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
5 days, based on the durations 1 centre publishes for it in the United States. 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.