FIG. 1 is a upper perspective view of the air filter of the present invention;
FIG. 2 is a lower perspective view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a left side view thereof, the right side view being a mirror image thereof; and,
FIG. 6 is a top view thereof, the bottom view being a mirror image thereof.
The features shown in broken lines depict environmental structure only and form no part of the claimed design.