COVID-19 Reusable respirator. FFP1...3+ Depends on fabric. (ver.2)

By EvilGrym

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COVID-19 Reusable respirator. FFP1...3+ Depends on fabric. (ver.2)

COVID-19 Reusable respirator. FFP1...3+ Depends on fabric. Exhaust valve made of latex glove or something like. Remove thin walls at nose region of mask. That walls are supprts for printing. Inhale by nose and mouth, exhale by mouth through exhaust tube. Using this way allows you to breath with fresh air .
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