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Companion 550 Portable Unit Components ONLY
•
Continuous/Demand Flow Switch: a toggle switch that sets the
Portable for either continuous flow or flow only when you inhale.
•
Sensor Connector: used to sense your inhalation effort. Attach
either tube of the dual-lumen cannula to this connector.
•
Dual-Lumen Cannula: a special cannula with two connecting
tubes for use with the Companion 550. One cannula tube
connects to the unit's oxygen outlet connector and delivers
oxygen to you. The second tube connects to the unit's sensor
connector and monitors your breathing pattern. You may attach
either of the cannula tubes to either connector.
Figure 10: C500/C550 Portable Unit Components
B-701417-00 Rev D
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