Patent ID: 9408424
Filing Date: 2016-08-09
CPC Classification: A41D

Claim Text:
1. A shaped filtering face-piece respirator that comprises: a shaped mask body that comprises at least one filtering layer and that comprises a rearward open end with a perimeter; and, a face seal that is connected to the perimeter of the mask body and that extends inwardly from the perimeter of the mask body to terminate at an inner edge of the face seal, wherein the face seal comprises at least one water-vapor-breathable layer that is also liquid-water-repellent; and wherein the water-vapor-breathable layer exhibits an area and wherein no more than about 20% of the area of the water-vapor-breathable layer is covered by a low-MVTR layer that exhibits an MVTR that is less than 400 grams per square meter per 24 hours when tested at a temperature of 38° C.).