FIG. 1 is a side perspective view of a fan housing showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevation view thereof, the left side being a mirror image;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a rear elevation view thereof.

The surface(s) or portion(s) of the article not shown in the drawing or described in the specification form(s) no part of the claimed design.

The broken-line showing of environmental structure in FIGS. 1-5 is for illustrative purposes only and forms no part of the claimed design.