The function of the pre-filter is to capture large particles and extend the lifespan of particle filters (e.g. SR 510 P3, SR 217 A1, SR 297 A1, etc.). The pre-filter is placed in the filter holder and then fitted onto a particle or combination filter. The package contains 5 pieces. Here you can…
The function of the pre-filter is to capture large particles and extend the lifespan of particle filters (e.g. SR 510 P3, SR 217 A1, SR 297 A1, etc.). The pre-filter is placed in the filter holder and then fitted onto a particle or combination filter. The package contains 5 pieces.
Here you can download the Confirmation of Issue of EU Declaration of Conformity for this half mask.
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