Table 1 Leakage during inspiration and expiration given for each mask.

From: Air seal performance of personalized and statistically shaped 3D-printed face masks compared with market-available surgical and FFP2 masks

Type

N

Inspiration

Expiration

Mean (%)

SD (%)

Mean (%)

SD (%)

SM

12

86.074A

4.636

83.787A

10.004

FFP2

12

34.534B

15.948

34.979B

16.872

SSMS

7

31.239B

19.184

35.810B

18.872

SSML

5

34.749B

14.799

39.102B

13.257

PM

8

7.853C

16.737

12.934C

16.773

  1. Groups with the same superscript letters (A, B, C) did not differ significantly.
  2. SD standard deviation, SM surgical mask, SSMS statistically shaped mask S, SSML statistically shaped mask L, PM personalized mask.
Back to article page