FIG. 1 is a rear view of a ventilator fan;
FIG. 2 is a front view of the ventilator fan from FIG. 1;
FIG. 3 is a right side view of the ventilator fan from FIG. 1;
FIG. 4 is a left side view of the ventilator fan from FIG. 1;
FIG. 5 is a perspective side view of the ventilator fan from FIG. 1, shown with an environmental grill;
FIG. 6 is a top view of the ventilator fan from FIG. 1; and,
FIG. 7 is a bottom view of the ventilator fan from FIG. 1.
The broken lines in FIG. 5 showing the circular grill depict environmental subject matter only and form no part of the claim, while all other broken lines depict portions of the ventilator fan that form no part of the claimed design. Additionally, the wire frame line shading is meant to show contour of represented surfaces and not surface ornamentation.