Air filter

Description

FIG. 1 is a top front perspective view of the air filter;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines represent portions of the air filter that form no part of the claimed design.

Claims

We claim the ornamental design for an air filter, as shown and described.