The ornamental design for a waterionizer, as shown and described.
FIG. 1 is a perspective view of this design.
FIG. 2 is a front view of this design.
FIG. 3 is a rear view of this design.
FIG. 4 is a left side view of this design.
FIG. 5 is a right side view of this design.
FIG. 6 is a top plan view of this design.
FIG. 7 is a bottom plan view of this design.
FIG. 8 is a front view of the water ionizer including an unclaimed display part and controlling part; and,
FIG. 9 is a perspective view of the water ionizer including an unclaimed display part and controlling part.
The water ionizer is made from a metal and a synthetic resin material.
The water ionizer is used by connecting to a water pipe. The water ionizer filters and purifies water containing impurities, and electrolyzes the purified water to generate alkaline ionized water and acid ionized water, thereby allowing for selectively using drinking water and cosmetic water.
The broken lines shown in FIGS. 8 and 9 are for illustrative purposes only and form no part of the claimed design.