Thingiverse
Mask AddOnFilter
di urs3D
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This is a add on filter for FFP2 or FFP3 mask with valve.
The filter shall contain 2 layer of activated carbon cloth.
It shall stop moisture in breathe out air.
The filter is not certified and there is no guarantee at al.
Use at your own risk.
The filter shall contain 2 layer of activated carbon cloth.
It shall stop moisture in breathe out air.
The filter is not certified and there is no guarantee at al.
Use at your own risk.
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