CAIRE HELiOS Marathon H850 Use Manual page 28

Using Your HELiOS Marathon H850 Portable Oxygen Unit
other connection is used to supply oxygen into
your nose.
Note:
Currently, there are two dual-lumen cannula designs
available for use with the H850. One cannula provides
sensing and delivery of oxygen in each nostril. This is the
best one to use with a blocked nasal passage. The other
provides oxygen only to one side of the nose and senses
when to provide oxygen on the other. Also, the tips are
slightly smaller and softer.
1. Attaching the dual-lumen cannula—Attach
Note:
Separate or pull apart the connector ends of the dual-
lumen cannula a minimum of five inches to prevent the
cannula from kinking while attaching the cannula
connectors to the barbs on the unit.
Note:
The lower connector is used to sense when you inhale.
The upper connector is used to supply oxygen to your
nose.
Figure 11. Attaching to Dual-Lumen Cannula Barbs
24 HELiOS Marathon
both ends of the dual-lumen cannula to the
portable oxygen unit. See Attaching to Dual-
Lumen Cannula Barbs, Figure 11. Either end of
the dual-lumen cannula may be attached to
either connector on the portable oxygen unit.
TM
H850 Portable Oxygen Unit Home Use Guide