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. 2021 Jan 6;60:787–798. doi: 10.1016/j.jmsy.2020.12.021

Fig. 4.

Fig. 4

Surgical face mask is a common PPE in usual time that becomes scarce during the pandemic. (a) Various components of the main structure of a 3D printed face mask, (b) AM creates ample opportunities and customizations in the design of face masks, (c) a perfectly fit 3D printed face mask (Photo credit: National Institute of Health/NIH).