FIG. 1 is a perspective view of the new design for a triangular bond pattern on a personal respiratory protection mask in unfolded condition;

FIG. 2 is a front view thereof;

FIG. 3 is an enlarged cross-sectional view, taken along lines 3-3 of FIG. 2;

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;

FIG. 8 is a rear view thereof;

FIG. 9 is a perspective view showing the new design in a folded condition; and,

FIG. 10 is a left-side view, showing the new design in the folded condition.

The phantom line showing forms no part of the claimed design, the dot-dash line meeting the solid lines shows the boundary of the claimed design, and the shading is provided to illustrate contour only and is not an indication of texture, gloss, etc.