Imagine sliding through the water, accompanied not by the roar of bubbles, but by silence. Imagine getting close and personal with aquatic life – getting closer than ever before. When you dive with a semiclosed rebreather, you’re nearly bubble free – reducing the noise and disturbance that can scare away shy creatures.
Through either the Semiclosed Rebreather Draeger Dolphin/Atlantis Specialty course or the Semiclosed Rebreather Draeger Ray Specialty course you learn the special procedures for semiclosed rebreather diving. This includes special dive planning, organization, procedures and potential hazards, many of which differ significantly from conventional (open circuit) scuba.
Must be a PADI Advanced Open Water Diver (or qualifying certification from another organization) or a PADI Open Water Diver (or qualifying certification from another organization) with proof of at least 10 logged dives beyond open water training dives, and be a PADI Enriched Air Diver (or qualifying certification from another organization)
Number of Dives: Three
Advantages and disadvantages
Assembly, disassembly and maintenance
Dive planning and emergency procedures with semiclosed rebreathers
Certification counts toward the PADI Master Scuba Diver rating.
Dive nearly bubble free.
For more information on Semi-Closed Rebreather courses contact us on
Well done to Wayne Allen on qualifying as an IDC Staff instructor and to David Wright on qualifying as an Instructor at the first IE of this year.
DSAT Technical Training 
