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CMAS Advanced Semi-Closed Rebreather Instructor Course

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Course Overview

This course is designed to provide the certified Semi-Closed Rebreather instructor the techniques involved in teaching the use of semi-closed circuit Rebreathers for divers wishing to utilize the Dolphin unit performing decompression dives.


Minumum age of 18.
Two Star instructor certified.
Advanced Nitrox instructor certified.
Semi-Closed Rebreather instructor certified.
Proof of 50 logged semi-closed rebreather dives.
Proof of assistance of an advanced semi-closed rebreather diver course.

Details of the course

The Advanced Semi-Closed Rebreather instructor course covers:

  • History and evolution of rebreathers
  • Comparison of Open Circuit, Semi-Closed Circuit and Closed Circuit
  • Practical mechanics of the system
  • Review of Nitrox
  • Physiology
  • Formula work, metabolic consumption
  • Dive tables & dive computers
  • Problem solving
  • Dive planning

Course duration and number of dives

The Advanced Semi Closed Rebreather Instructor course is a 3 day course and 4 dives are required.

Course Price

currency converter CASCRI

Additional costs

Recreational Rental equipment if needed. set p/day
Dive sorbe required for the course

Equipment requirement

The Advanced Semi-Closed Rebreather instructor course has no specific equipment requirement more than your standard recreational dive gear. We supply the unit, nitrox tanks and mixes, and the oxygen analyser.

Got something to ask us ?

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