The Czech Republic has certified a 3D printed anti-covid-19 mask, as a half-mask with FFP3 safety level to EN 140:1999 when using exchangeable external filters. Designed at the Czech Technical University in Prague, by its Institute of Informatics, Robotics and Cybernetics (CIIRC CTU), the part is called ‘CIIRC RP95-3D’ and has to be printed on a ...

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