| 摘要 |
A filtering face-piece respirator 10 that includes a harness 14 and a mask body 12 that has a multi-layer filtering structure 16. The mask body 12 includes an upper interior perimeter segment 24a formed from the filtering structure 16 and configured to fit against the face of the respirator wearer. Present in the upper interior perimeter segment 24a is a nose notch 52, 62, which is an area void of filtering structure 16. |
