The system 2200 includes a mask 2208, a first deadspace 2204, {HEAD ~ a second deadspace} 2204, a first orifice 2212, airflow control conduit 2220, a third orifice 2218, {TAIL ~ a CPAP machine} 2210, a connection setup panel 2202 
The system 2200 includes a mask 2208 , a first deadspace 2204 , { HEAD ~ a second deadspace } 2204 , a first orifice 2212 , airflow control conduit 2220 , a third orifice 2218 , { TAIL ~ a CPAP machine } 2210 , a connection setup panel 2202
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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