Filter Cartridge for a Filter Facepiece

FIG. 1 is a front view of a filter cartridge for a filter facepiece according to our new design;

FIG. 2 is a back view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front perspective view thereof.

The broken lines shown in the drawings illustrate portions of the filter cartridge for a filter facepiece that form no part of the claimed design.