Breathing Tube

FIG. 1 is a top, front and left side perspective view of a breathing tube.

FIG. 2 is a left side view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is a front view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the breathing tube which form no part of the claimed design.

The breathing tube is shown with symbolic break lines in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.