Table 3 Fitted filtration efficiency (FFE) of ear loop face masks with a clip secured behind the head.
From: Variation in the fitted filtration efficiency of disposable face masks by sex
Clip-modified Fitted Filtration Efficiency (FFE) | |||||||
|---|---|---|---|---|---|---|---|
Participants | Tukey HSD tests | ||||||
All | delta | Female | delta | Male | delta | F vs M | |
KN95 | |||||||
Average FFE (s.d.) | 80.8 (12.0) | 11.4 | 84.5 (10.0) | 18.8 | 77.0 (12.6) | 4.0 | *** |
Median | 82.1 | 9.9 | 87.0 | 19.1 | 75.6 | 5.2 | |
Surgical | |||||||
Average FFE (s.d.) | 66.4 (9.4) | 8.9 | 66.1 (7.8) | 13.7 | 66.6 (10.8) | 4.1 | *** |
Median | 67.9 | 8.8 | 67.6 | 14.4 | 68.4 | 3.9 | |
KF94 | |||||||
Average FFE (s.d.) | 73.1 (13.9) | 17.9 | 73.7 (13.8) | 26.1 | 72.5 (14.2) | 9.7 | *** |
Median | 75.6 | 15.7 | 77.0 | 26.4 | 71.4 | 10.3 | |
