User manual

8
User Manual
The circuit, shown in Figure 3–2, consists of:
• 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
(Typical)
Circuit with Separate
Exhalation Device
Circuit with Mask with
Integrated Exhalation Port
Flexible
Tubing
Connector
Mask's
Connector
Exhalation
Port
Figure 3–2 Typical Breathing Circuits
NOTE: The exhalation port may be part of the mask or may be part of
aseparateexhalationdevice,butisrequiredtominimizethe
potential for CO
2
rebreathing.
The system senses your breathing effort and changes pressure levels
when you inhale and exhale depending on the mode of operation.
WARNING: The device can operate on AC or DC power. The DC
power option is not intended as a battery backup.
CAUTION: WhenDCpowerisobtainedfromavehiclebattery,the
device should not be used while the vehicle’s engine is
running.