This is the treatment of choice for severe sleep apnea syndrome. Nocturnal positive pressure (CPAP) prevents the closure of the upper airways during sleep by delivering pressure.
The pressure comes from a generator delivering a pressure that is most often variable from 4 to 18 cm of water (pneumatic splint).

This treatment requires:
- a pressure generator whose pressure is usually variable depending on the detection of apneas (automatic CPAP) and connected to the mains
- A sealed nasal mask secured by straps and connected to the generator by a hose
Various models are available (fixed or variable pressure, humidifier, heated air, variable inspiratory and expiratory pressure, etc.)
This treatment is completely effective in the vast majority of cases, but it has two drawbacks:
- Psychological, especially in young and mildly symptomatic individuals (fatigue and drowsiness)
- Recurrence of apnea upon discontinuation of treatment


Different models of pressure generators

Different mask models

