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Various face shields designs made by different AM techniques. a Hígia model [62]—SLS/PA12; b Prusa RC1 model [53]—SLS/PA12; c Prusa RC2 model [53]—FDM/ABS; d adapted Prusa model 1—SLS/PA12; adapted Prusa model 2—FDM/PC; adapted Prusa model 3—FDM/PC. Face shields assembly with a Prusa RC1 model and b adapted Prusa model 3
