FIG. 1 is a top left perspective view of the air cleaner;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a left side elevation view, the right side elevation view being a mirror image thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken line showing is for illustrative purposes only and forms no part of the claimed design.