Nasal mask and breathing tube set

FIG. 1 is a top, front and right side perspective view of a nasal mask and breathing tube set showing our 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;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a top, front and right side perspective view thereof, shown with an alternative breathing tube having a set length.

The breathing tube of the nasal mask is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design. The broken lines in the drawings depict portions of the nasal mask and breathing tube set that form no part of the claimed design.