Why not 3D Printed masks:
https://twitter.com/RealSexyCyborg/status/1240737164654047232

Why cloth masks for the public and N95 for Health Care Workers: https://twitter.com/RealSexyCyborg/status/1240248440161857536
3D Print face shields:
https://www.prusaprinters.org/prints/25857-prusa-protective-face-shield-rc2

Sew masks:
https://freesewing.org/docs/patterns/fu/instructions/

3D print ventilator T-connectors to requested specs (varies per hospital and machine).
https://twitter.com/RealSexyCyborg/status/1241003807649087491?s=19
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