Abstract: A respirator (10) and a process of making the respirator (10) are disclosed. The respirator (10) can include a mask body (12) including right and left portions (16, 18) on each side of a centerline (14), where the right and left portions (16, 18) are bounded by a perimeter (24) of the mask body (12). The mask body (12) can also include a right tab (30) that extends from a right side perimeter segment (26) of the perimeter (24) of the mask body (12) adjacent the right portion (16), and a left tab (40) that extends from a left side perimeter segment (28) of the perimeter (24) of the mask body (12) adjacent the left portion (18); a right earloop (60) attached to the right tab (30) at first and second right attachment locations (50, 54); a left earloop (62) attached to the left tab (40) at first and second left attachment locations (52, 56); and a nose clip (92) disposed adjacent an upper perimeter segment (22) of the perimeter (24) of the mask body (12).

Abstract: One or more embodiments of a respirator and a method of making the respirator are disclosed. The respirator can include a harness (60) including first and second straps (62, 64); a mask body (12) including right and left portions (16, 18) on each side of a centerline (24), where the right and left portions (16, 18) are bounded by a perimeter (24) of the mask body (12); a right tab (30) that extends from a right side perimeter segment (26) of the perimeter (24) of the mask body (12) adjacent the right portion (16); and a left tab (40) that extends from a left side perimeter segment (28) of the perimeter of the mask body (12) adjacent the left portion (18). The first strap (62) of the harness (60) is attached to the right and left tabs (30, 40) at first right and left attachment locations (50, 52), and the second strap (64) is attached to the right and left tabs (30, 40) at second right and left attachment locations (54, 56).

Abstract: A die apparatus, a method of using the die apparatus to produce co-extruded polymeric articles, and co-extruded polymeric articles produced using the die apparatus and method are disclosed. The die apparatus includes a hollow vane configured to extrude a material into a chamber within the die, thereby producing a co-extruded web. The co-extruded web has a plurality of distinct, discontinuous phases in the cross-web direction, the phases having a uniform width as shown by a coefficient of variation of less than 8 percent for, any three consecutive phases. The phases are substantially continuous down-web and are surrounded by a matrix having two or more layers.