Filtering Face-Piece Respirator And Method Of Forming Same
Assignee3M Innovative Properties Company
InventorsXiaoping Zhou, Tian Tian, Hans Yin, Fan Yang, Mingming Wang
Life of this patent
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Abstract
Various embodiments of a filtering face-piece respirator and a method of forming such respirator are disclosed. In one or more embodiments, the filtering face-piece respirator can include a mask body. The mask body can include an inner cover web, an outer cover web, and filter media enclosed between the inner cover web and outer cover web such that the filter media does not extend to an edge of the mask body.
Claims20
A filtering face-piece respirator comprising a mask body, wherein the mask body comprises:
- an inner cover web;
- an outer cover web;
- filter media disposed between the inner cover web and outer cover web in a filter region of the mask body;
- and
- a seal region that defines at least a portion of a perimeter of the mask body, wherein the inner cover web is attached to the outer cover web in the seal region, and further wherein the filter media does not extend into at least a portion of the seal region.
A filtering face-piece respirator comprising a mask body, wherein the mask body comprises:
- an inner cover web;
- an outer cover web;
- and
- filter media enclosed between the inner cover web and outer cover web such that the filter media does not extend to an edge of the mask body.
forming filter media;
- attaching the filter media to an inner cover web;
- and
- attaching the inner cover web to an outer cover web to form a seal region that defines a perimeter of the mask body, wherein the filter media is disposed between the inner cover web and the outer cover web, and further wherein the filter media does not extend into at least a portion of the seal region.
Dependencies are inferred from the claim text.