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3DMASK - 3D printed mask
This open-source 3DMASK offers a FFP2-level protection with the right filter material. It can be produced by anybody in possession of a 3D printer. More info at the Wiki page.
This open-source 3DMASK offers a FFP2-level protection with the right filter material. It can be produced by anybody in possession of a 3D printer. More info at the Wiki page.