The ornamental design for a vaporizer, as shown and described.
FIG. 1 is a perspective view of the vaporizer;
FIG. 2 is a front elevational view of the vaporizer of FIG. 1;
FIG. 3 is a rear elevational view of the vaporizer of FIG. 1;
FIG. 4 is a right side elevational view of the vaporizer of FIG. 1;
FIG. 5 is a left side elevational view of the vaporizer of FIG. 1;
FIG. 6 is a top plan view of the vaporizer of FIG. 1; and,
FIG. 7 is a bottom plan view of the vaporizer of FIG. 1.
The dot-dash broken lines immediately adjacent to the claimed areas in the drawings represent the boundaries of the claimed design and form no part thereof.
The dashed broken lines in the drawings illustrate portions of the vaporizer that form no part of the claimed design.