How does CPAP work?

How does CPAP work for sleep apnea?

The machine pumps air, which is delivered usually through snugly fitting mask over the nose. The mask may also cover the mouth, and parts of the face and forehead, depending on the design. The mask is held securely in place by headbands or tapes, throughout the duration of sleep. "Nasal pillows" are one variation in design, where air is delivered directly inside the nostrils through small cushions, without anything on the face.

CPAP machines can be VERY uncomfortable, which is a factor in a substantial portion of patients quitting use within a few weeks. So think again before buying this expensive piece of JUNK.