5. Negative User seal check
2020-10-05
OI01T-300221 SR 905
9
5.1
Turn the remote filter
holder forward and place the
palm of your hand lightly over
the hole on the prefilter holder
to make it tight.
Inhale gently, the respirator
should pull inward on the
face. Hold your breath for 5
sec. The respirator should
remain collapsed on the face.
If any leakage is detected:
•
Check that the inhalation and exhalation valve flaps is
undamaged,
•
Check that the connection with O-ring(s) and attachment with
gasket is undamaged and fits properly,
•
Check that the hose not is twisted.
Repeat the user seal check until there is no leakage.
Inadequate fit may be caused by beard growth, stubble, deep facial
furrows or unusual face size.
5.2
Rotate back the belt so
that the SR 905 is placed at
the back of your waist.
With hose SR 951,
5.3
With hose SR 952
