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CMAS Closed Circuit Rebreather Air Diluent (MOD1) Course

courses > rebreather > cmas closed circuit rebreather air diluent (mod1)

Course Overview

This is the entry-level certification course for divers wishing to utilize the KISS or Evolution/Inspiration closed circuit rebreather for air diving. The objective of this course is to provide divers with a good understanding involved in the use of Closed Circuit Rebreathers and to develop basic skills to a maximum depth of 30msw using air as a diluent. No decompression is allowed during this course.


Minumum age of 18.
Proof of 20 logged dives.
Nitrox certified.

Details of the course

The Closed Circuit Rebreather MOD1 diver course covers:

  • History and evolution of rebreathers
  • Comparison of Open Circuit, Semi-Closed Circuit and Closed Circuit
  • Practical mechanics of the system
  • Physiology
  • Proper scrubber packing
  • Electronic or manual systems design and maintenance
  • Dive tables & dive computers
  • Dive planning
  • Problem solving - Emergency procedures

Course duration and number of dives

The Closed Circuit Rebreather MOD1 diver course is a 4 day course and 7 dives are required.

Course Price

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Additional costs

Rental equipment if needed. set p/day

Equipment requirement

The Closed Circuit Rebreather Diver course has no specific equipment requirement more than your standard recreational dive gear. We supply the unit, tanks and mixes, and the oxygen analyser.

Got something to ask us ?

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