The ornamental design for a vaporization apparatus, as shown and described.
FIG. 1 is a front view of a vaporization apparatus showing my new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.
In the drawings, the dot-dot-dash broken lines depict the bounds of the claimed design and the dash-dash broken lines depict parts of the vaporization apparatus; All broken lines form no part of the claimed design.