Yep, one by Czech Technical University: https://www.ciirc.cvut.cz/covid-2/ https://www.ciirc.cvut.cz/covid-2/ https://www.rp95.cz/en/ https://www.rp95.cz/en/

Yep, one by Czech Technical University: https://www.ciirc.cvut.cz/covid-2/ https://www.ciirc.cvut.cz/covid-2/ https://www.rp95.cz/en/ https://www.rp95.cz/en/ And most rencently, after the 3D printed protoypes turned ot to work very well, an automated assembly line was put togehter in record time: https://www.ciirc.cvut.cz/seriova-vyroba-ceske-masky-s-nejvyssim-stupnem-ochrany-byla-zahajena-do-priprav-se-zapojilo-vice-nez-tricet-ceskych-spolecnosti/ https://www.ciirc.cvut.cz/seriova-vyroba-ceske-masky-s-nejvy... The other major technical university - Brno Uiversity of Technology - also developped a 3D printable face mask design: https://www.vutbr.cz/en/mask https://www.vutbr.cz/en/mask https://www.vutbr.cz/en/but/news-f19528/covid-19-protection-halfmask-but-h1-d197642 https://www.vutbr.cz/en/but/news-f19528/covid-19-protection-... In comparion to the mask above, this is a 100% DIY design that one can assemble with common hashold items and a 3D printer.