Air Filter

FIG. 1 is a front perspective view of an air filter, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof, the right side view being a mirror image of FIG. 5 ;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front perspective view of the air filter in an opened state;

FIG. 9 is a rear perspective view of the air filter in an opened state;

FIG. 10 is a front perspective view of another angle of the air filter in an opened state; and,

FIG. 11 is a rear perspective view of another angle of the air filter in an opened state.

The dashed broken lines in the figures are for the purposes of illustrating portions of the air filter, which form no part of the claimed design.