| 摘要 |
<p>The material (1) has a filter material layer (2) supported into a set of folds (3), where the filter material layer exhibits a filter layer (4) and a network layer (5). The filter material layer has another network layer (6) on a side of the filter layer opposite to the former network layer. Two adjacent layers of the filter material layer lie on top of one another on one side, so that a recess (7) is formed between the adjacent folds. The network layers exhibit ethylene-vinyl acetate and/or polypropylene, where one of the network layers exhibit rhomb-shaped or rectangular network structure. An independent claim is also included for a respiratory mask comprising a sell-shaped molded mask body and a filter material.</p> |
