Diffuser

FIG. 1 is a perspective view of a diffuser according to the disclosure;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The dashed lines shown in the figures are for purposes of illustrating portions of the diffuser and form no part of the claimed design.