FIELD: rescue methods and devices.
SUBSTANCE: respirator includes a mask body including a perimeter, a harness attached to the mask body, and a face seal disposed along at least a portion of the perimeter of the mask body, wherein the face seal comprises a polymeric netting comprising polymeric ribbons and polymeric strands, each of the polymeric ribbons and strands having a length, width, and height, wherein the length is the longest dimension, the width is the shortest dimension, and the height is the dimension transverse to the length and the width, wherein the polymeric ribbons have a height-to-width aspect ratio of at least 5:1, a major surface that is intermittently bonded to only one polymeric strand, and a height that is at least two times greater than a height of the one polymeric strand.
EFFECT: embodiments of a respirator, the design of which includes a component made of polymeric netting material are described.
17 cl, 43 dwg
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