{HEAD ~ A gas delivery tube} 28 is secured to the discharge 29 of the compressor 23 and extends to the mask 20 for the delivery of {TAIL ~ a breathable gas} to the patients nose 21 as shown in FIG 2 
{ HEAD ~ A gas delivery tube } 28 is secured to the discharge 29 of the compressor 23 and extends to the mask 20 for the delivery of { TAIL ~ a breathable gas } to the patients nose 21 as shown in FIG 2
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH