Smoking Filter

FIG. 1 is a perspective view of a smoking filter showing the claimed design;

FIG. 2 is side view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a back plan view thereof.

The evenly spaced broken lines depict portions of the smoking filter that form no part of the claimed design; the dash-dot-dash broken lines represent the bounds of the claimed design and form no part thereof.