Semi Closed Rebreather Articles

By Fltekdiver

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Thoughts on the pros and cons of the Azimuth and the Dolphin

By wedivebc

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The Drager Dolphin has been kicking around since 1995! Some may argue that there are better units but you can't argue with the fact there are probably more Dolphins in use than all other rebreathers put together!

By Sean Arrowsmith

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Teardown of the STDE EDO-04 SCR, RMV keyed and similar to Halcyon RB80

By Dan Dunfee

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Fundamentals Of Constant Mass Flow Gas Systems
For Rebreather Scuba.
BY: Dan Dunfee

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A clear understanding of sonic and mass flow fundamentals is essential to safe and effective use of Manually-Controlled, Closed-Circuit and Semi-Closed Circuit Rebreather ( mCCR and SCR ) diving rigs. This is especially true for divers who build or modify their own equipment.
Early Constant Mass Flow Rebreathers
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Pirelli LS-901 CDBA Lt. Lund II

By gtzavelas

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The RECY'01 is a Respiratory Minute Volume Keyed (RMV-Keyed) Passive Addition Semi Closed Rebreather.

By David Morris

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The following is based on David Morris' training and experience with the Drager Dolphin rebreather