Ventilator Coupler

FIG. 1 is a lower right-side perspective view of a ventilator coupler.

FIG. 2 is a is a lower left-side perspective view of a ventilator coupler.

FIG. 3 is a top view of the ventilator coupler; and,

FIG. 4 is a bottom view of the ventilator coupler.

The dashed lines in the drawings illustrate portions of the ventilator coupler which form no part of the claimed design. The dot-dash line of FIG. 3 is a boundary line that defines the bounds of the claimed design and forms no part thereof.