Mask

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

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a rear perspective view thereof;

FIG. 8 is a bottom perspective view thereof;

FIG. 9 is another bottom perspective view thereof, showing the mask in an alternative configuration;

FIG. 10 is a side view of a person wearing the mask of FIG. 9 ; and,

FIG. 11 is a partially enlarged view showing the circled portion in FIG. 10 .

The evenly spaced broken lines depict portions of the mask and environment that form no part of the claimed design.

The dot dot dash lines denote the boundaries of the detail areas and form no part of the claim.