Ventilator housing
FIG. 1 is a perspective view of a ventilator housing showing my design; 
     FIG. 2 is a front elevation view of the ventilator housing of FIG. 1; 
     FIG. 3 is a top plan view of the ventilator housing of FIG. 1; 
     FIG. 4 is a right side elevation view of the ventilator housing of FIG. 1; 
     FIG. 5 is a left side elevation view of the ventilator housing of FIG. 1; and, 
     FIG. 6 is a bottom plan view of the ventilator housing of FIG. 1.