CAIRE HELiOS Marathon H850 Home Use Manual page 41

How To Use Your H850 Personal Oxygen System
Note: If you need continuous flow while breathing off the
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HELiOS Reservoir, an external flow control must
be used to supply this flow rate. The CAIRE Inc.
part number for this external flow control
is B-701655-00. Contact your home care provider
for further details on setup and use. Also, see the
section External Flow Control in this manual.
H850 Home Use Guide