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editorial

. 2020 Apr 21;133(7):771–773. doi: 10.1016/j.amjmed.2020.04.002

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A potential N95 three-dimensional (3D) printed mask prototype. The biomaterials displayed in this image have been fully characterized in the medical literature, with the same material composition of N95 masks.3, 4, 5, 6 The mask includes several layers thereby ensuring effective filtration of viral particles.