A notification system monitors changes in air flow channeled between {HEAD ~ a positive air pressure generator} and a CPAP mask supplying positive airway pressure to a patient during treatment of {TAIL ~ sleep apnea} 
A notification system monitors changes in air flow channeled between { HEAD ~ a positive air pressure generator } and a CPAP mask supplying positive airway pressure to a patient during treatment of { TAIL ~ sleep apnea }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL