FIG. 1 is a front perspective view of a patient interface according to our new design;

FIG. 2 is a reverse perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is a right side view thereof.

The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines represent environmental structure and are for illustrative purposes only; the broken lines form no part of the claimed design.

Where included, the use of stippling and shading is provided to show contrast in materials to differentiate between different areas of the design.