P
PrintablesPavel Petrman
Makeshift inhale and exhale filters for 3M 6000 face mask (3M 6300, 3M 6900)
If you need dust protection (about P1) or an exhale filter (as per authority requirement) just print these out and attach any membrane material you have at hand, fasten with a wire and you are ready to go. Made for a friend of mine who…
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