***This model is open to changes and suggestions. Before voting no, please let me know what you see as wrong with the design.
Seeing the need of lack... of resources to fight against the virus that is crushing us lately, I want to share this design of mask for those people who do not have anything at least to protect themselves, it is advisable to print it in PTEG or PLA and cover it with FFP2 filtering cloth at least (there are studies that fdm printing leaves micropores). This is more effective (covering it with filtering cloth, this mask is only as a structure), in the main housing there is room for FFP3 filters.
The size is similar to unfiltered paper masks but could be easily scaled.
Always remember to disinfect and change filters after use.
Good luck!
3d model print parameters
-Layer height 0.32
-Perimeters 2
-Fill 15%.
-Speed 70 (this parameter will depend on your printer)
Brackets activated with the option "Bracket can...tilever angle" at 80
-Printing time 3h and 28min.