Respironics REMstar M Series, User Manual, Page: 15 / 59

1-7 REM
staR
M s
ERiEs
U
sER
M
anUal
1.4.1 b
REathing
C
iRCUit
o
vERviEW
The patient breathing circuit, shown in Figure 1–4, consists of the following:
• Circuit tubing to deliver air from the device to your interface (e.g., mask)
• A mask or other patient interface device to deliver the prescribed pressure to your nose or
nose and mouth, depending on which interface has been prescribed for you
• An exhalation device to vent exhaled air from the circuit
Circuit
Tubing
Exhalation
Device
Patient Interface
Circuit with Separate
Exhalation Device
Circuit with Mask with
Integrated Exhalation Port
Flexible
Tubing
Connector
Mask's
Connector
Exhalation
Port
f
igURE
1–4 t
ypiCal
b
REathing
C
iRCUits
Note: The exhalation port may be part of the interface or may be part of a separate
exhalation device, but is required to minimize the potential for CO
2
rebreathing.