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. 2022 Mar 24;102:103751. doi: 10.1016/j.apergo.2022.103751

Table 4.

Performance of masks.

MNmask v1 MNmask v2 KN95
Fit factor (n = 9) Pass rate 2 out of 9 7 out of 9a 0 out of 9b
Mean (S.D.) 93.32 (141.35) 438.00 (436.15) 4.86 (2.15)
Filtration efficiency (particle size range 0.03–1.0 μm) >95% >95% 88%–94%

See Griffin et al. (2022) for further information.

a

Reflects the score of an improved modification to nose wire durability and band fit.

b

Reflects the score of a similar KN95 mask (GB2626-2006 certified) tested for another publication.