Sundstrom SR 100 S/M Manuel De L'utilisateur page 14

C. Fit Check
A proper fit check must be completed successfully each time the respirator is worn. Failure
to achieve a proper face-to-respirator seal before you enter a hazardous atmosphere may
result in little or no respiratory protection.
Negative Fit Check
1) Install a protective element.
2) Snap the pre-filter holder onto the protective element.
3) Donning the respirator.
4) Place the palm of your hand lightly over the hole on the pre-filter holder to make it tight.
NOTE! Do not push so hard that the respirator´s shape is affected.
5) Inhale gently, the respirator should pull inward on the face.
6) Hold your breath, the respirator should remain collapsed on the face.
7) Remove the palm of your hand from the pre-filter holder.
8) Breathe normally.
If any leakage is detected, check the inahalation and exhalation valves, adjust the straps of head harness
or switch to alternative size of the respirator. Repeat the fit check until there is no leakage.
D. Doffing the respirator
1) Grasp the filter or cartridge with one hand.
2) Reach up and grasp the head pad or cradle and pull it forward over your head.
3) Pull down on the respirator until the harness strap extends and the respirator rests on your chest.
4) Reach behind your neck, grab the strap buckle, and pull it over your head.
5) Clean and store respirator as required.
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