Disinfection:
After cleaning, disinfect the mask (especially the inside/face seal) with a disinfectant solution,
rinse and let it dry (max +50
0
C). Finally, reassemble the mask.
Assembly and testing:
Visual examination of the inhalation valve disc
Unbutton the inhalation valve disc and examine it. Place the disc of the inhalation valve behind the stub.
The disc should rest evenly on the sealing area inside the mask body.
Visual examination of the exhalation valve disc
Remove facepiece from mask body. Hold the valve disc by the edge and draw it out. Examine the valve seat for dirt
and damage, and wipe it clean with a disposable tissue if necessary. Press the examined valve disc into the valve
seat until it engages. The disc should rest on the valve seat uniformly and completely flat.
Assembling half mask
Arrange the straps. Fit the facepiece on the mask body. Insert two new respiratory filters.
Check correct functioning and absence of leaks after assembly and before use with fitted half mask (as
described under "Test for leaks before use”).
Inspection intervals of the half masks
Cleaning and
disinfecting
Visual and
operating test
Leak tests:
Excess-and/or
negative
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