The system further provides for detecting changes in air pressure in the air flow supplied to {HEAD ~ a mask} adapted to supply {TAIL ~ positive airway pressure} to a patient undergoing treatment for a sleep disorder 
adapted to supply
The system further provides for detecting changes in air pressure in the air flow supplied to { HEAD ~ a mask } adapted to supply { TAIL ~ positive airway pressure } to a patient undergoing treatment for a sleep disorder
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH