| 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). Present at the perimeter (24) on the interior surface of the mask body (12) is a region having an increased coefficient of friction (44), in relation to the filtering structure (16). This region (44) can be formed by a discontinuous coating of a polymeric material. The region (44) improves the fit of the respirator (10) on the wearer's face, providing a non-slip seal, yet allows moisture laden air to exit from the interior gas space of the mask body (12). |
