FIG. 1 is a perspective view of one embodiment of a nasal mask in accordance with our new design.

FIG. 2 is an additional perspective view of a first embodiment of a nasal mask in accordance with our new design.

FIG. 3 is a front view of the nasal mask shown in FIG. 1.

FIG. 4 is a back view of the nasal mask shown in FIG. 1.

FIG. 5 is a side view of the nasal mask shown in FIG. 1. The opposite side is identical and not separately illustrated herein.

FIG. 6 is a top view of the nasal mask shown in FIG. 1.

FIG. 7 is a bottom view of the nasal mask shown in FIG. 1.

FIG. 8 is a perspective view of second embodiment of a nasal mask in accordance with our new design, wherein the mask includes a lining.

FIG. 9 is an additional perspective view of second embodiment of a nasal mask in accordance with our new design, wherein the mask includes a lining.

FIG. 10 is a front view of the nasal mask shown in FIG. 7.

FIG. 11 is a back view of the nasal mask shown in FIG. 7.

FIG. 12 is a side view of the nasal mask shown in FIG. 7. The opposite side is identical and not separately illustrated herein.

FIG. 13 is a top view of the nasal mask shown in FIG. 7; and,

FIG. 14 is a bottom view of the nasal mask shown in FIG. 7.

The portions drawn in broken lines are shown for illustrative purposes only and do not form part of the claimed design.