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Uptodate Reference Title
Continuous positive airway pressure (CPAP) for sleep apnea
Continuous positive airway pressure (CPAP) for sleep apnea
The CPAP mask gently blows air into your nose while you sleep. It puts just enough pressure on your airway to keep it from closing. The mask in this picture fits over just the nose. Other CPAP devices have masks that fit over the nose and mouth.