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. 2020 Sep 1;25(3):127–129. doi: 10.1177/1535676020925958

Figure 1.

Figure 1.

Surgical or SM masks (A = larger size with straps; B = smaller size with straps; C = larger size with elastic; D = smaller size with elastic) and N95-style (E = larger size with straps; F = smaller size with elastic) models of face masks composed of varying Halyard textiles.