5.Packing (5/8)
5.11. Ensure the “OXY ON”
flag
disappears
when
the
“PRESS
TO
TEST
AND
RESET” button is released.
5.12. Finally press then release the
“PRESS TO TEST” button on the
regulator.
NOTE: This step will help release
any residual pressure within the
mask supply hose.
4NUT0577 issue 3