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2. Diving rebreather - Wikipedia

   en.wikipedia.org/wiki/Diving_rebreather

   Closed circuit rebreathers supply two breathing gases to the loop: one is pure oxygen and the other is a diluent or diluting gas such as air, nitrox, heliox or trimix. [32] A major function of the closed circuit rebreather is to control the oxygen partial pressure in the loop and to warn the diver if it becomes dangerously low or high. Too low ...

3. Rebreather diving - Wikipedia

   en.wikipedia.org/wiki/Rebreather_diving

   Oxygen rebreathers (simple closed circuit) are limited to a shallow depth range of approximately 6 m, beyond which the risk of acute oxygen toxicity rises to unacceptable levels very rapidly. Semi-closed circuit rebreathers are less efficient than closed circuit, and are more mechanically complex than open circuit scuba or oxygen rebreathers.

4. Clearance Divers Life Support Equipment - Wikipedia

   en.wikipedia.org/wiki/Clearance_Divers_Life...

   The CDLSE (Clearance Divers' Life Support Equipment) is made by Divex in Aberdeen, Scotland. [1] It is an electronic closed circuit rebreather designed to be silent and non-magnetic. It allows diving to 60 metres (200 ft) using air as diluent, or up to 120 metres (390 ft) using heliox and trimix. [2]

5. Rebreather - Wikipedia

   en.wikipedia.org/wiki/Rebreather

   Semi-closed circuit rebreather, also known as a gas extender: A semi-closed circuit rebreather either dumps some loop gas nearly constantly or constantly adds gas to the loop, and consequently needs an inflow of both diluent and oxygen to make up the volume. Changes in ambient pressure also require changes in the number (mass) of gas in the ...

6. Underwater breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Underwater_breathing_apparatus

   Underwater breathing apparatus can be classified as open circuit, semi-closed circuit, (including gas extenders) or closed circuit (including reclaim systems), based on whether any of the exhaled gas is recycled, and as self-contained or remotely supplied (usually surface-supplied, but also possibly from a lock-out submersible or an underwater habitat), depending on where the source of the ...

7. List of diving equipment manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_diving_equipment...

   Back mount and sidemount harnesses, O 2 PTIMA electronically-controlled closed circuit rebreathers [17] Diveroid – Dive computers. [9] Divesoft – Manufacturer of diving rebreathers and accessories. Liberty rebreathers, [38] [39] Freedom dive computers. [40] DiveTek [citation needed] Dive Xtras – US manufacturer of diver propulsion ...