US D424676 S
Abstract available in
FIG. 1 is a top front perspective view of the air filtration apparatus, showing my new design;
FIG. 2 is a right side elevation view;
FIG. 3 is a front elevation view;
FIG. 4 is a left side elevation view;
FIG. 5 is a rear elevation view;
FIG. 6 is a top plan view; and,
FIG. 7 is a bottom plan view.
The surface shading on the illustrative air filtration apparatus is intended only to show the character and contour of the surfaces and not surface indicia.