| skos:altLabel | - injectors
- regulators
- closed-circuit scuba
- counterlung
- diving rebreather
- rebreather
- Diving rebreather#Gas venting – Overpressure valve and diffuser
- Diving rebreather#Automatic diluent valve (ADV)
- Diving rebreather#Control of the breathing gas mix
- Diving rebreather#Semi closed circuit rebreathers
- Diving rebreather#Side-mounted rebreathers
- Fault tolerant design
- Rebreathers
- closed-circuit oxygen
- passive addition semi-closed rebreather
- rebreathers
- semi-closed rebreather
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