Cold air from the CPAP machine can mean the humidifier isn't working right. Snoring with a CPAP on might mean the pressure needs to be adjusted. Feeling worse or tired with a CPAP might mean its ...

Continuous positive airway pressure (CPAP) therapy is a common treatment for obstructive sleep apnea. A CPAP machine uses a hose and mask or nosepiece to deliver constant and steady air pressure.