Dust Mask

FIG. 1 is a perspective view of a dust mask showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The dash-dot lines represent a decorative stitch pattern on the surface of the mask in FIGS. 1 - 7 and form part of the claimed design. The even dashed line shown on the front of the mask in FIGS. 1 , 2 , and 4 - 6 represents sewing pressure points for supporting the nose of the mask wearer and forms no part of the claimed design.