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

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

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

FIG. 4 is an additional back view of the nasal mask seal shown in FIG. 1.

FIG. 5 is a front view of the nasal mask seal shown in FIG. 1.

FIG. 6 is a side view of the nasal mask seal shown in FIG. 1. The opposite side is similar and not separately illustrated herein.

FIG. 7 is a top view of the nasal mask seal shown in FIG. 1; and,

FIG. 8 is a bottom view of the nasal mask seal shown in FIG. 1.

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