US D484228 S1
FIG. 1 is a perspective view of a first embodiment of an air cleaning device, showing our new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a right view thereof;
FIG. 4 is a left view thereof; and,
FIG. 5 is a top or bottom view thereof.
The phantom line shown in the drawings forms no part of the claimed design(s).