The ornamental design for a red airpath for a powered air purifying respirator blower, as shown and described.
FIG. 1 is a top perspective view of a red air path for a powered air purifying respirator blower in accordance with the new design;
FIG. 2 is a left side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines immediately adjacent the red portions define the bounds of the claimed design and form no part thereof. All other broken lines depict portions that form no part of the claimed design.