发明名称 RESPIRATOR INCLUDING CONTRAST LAYER
摘要 Various embodiments of a respirator and a method of making such respirator are disclosed. In one or more embodiments, the respirator includes a mask body and a harness attached to the mask body. The mask body can include an outer cover web, an inner cover web, a filtration layer disposed between the outer cover web and the inner cover web, and a contrast layer disposed between the outer cover web and the inner cover web in a sinus region of the mask body. A portion of the contrast layer can be visible through an outer surface of the outer cover web to form a contrast region of the mask body, where the outer surface of the outer cover web faces away from the filtration layer.
申请公布号 WO2016010890(A1) 申请公布日期 2016.01.21
申请号 WO2015US40130 申请日期 2015.07.13
申请人 3M INNOVATIVE PROPERTIES COMPANY 发明人 DUFFY, DEAN R.
分类号 A62B23/02;A41D13/11 主分类号 A62B23/02
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