Water that has been filtered to remove nearly 100% of all elements except the hydrogen & oxygen that form the water molecule. Essentially, completely pure water, with a purity degree 4 times higher than that of distilled water.
Deionized water draws in other minerals and elements, such as those found in dirt and contaminants. Since its mineral content is removed, it’s very “hungry” to acquire other components. It aggressively tries to compensate for the loss of its ions by taking them away from its surroundings.
Because of its ability to easily remove “gunk,” it makes a great cleaning agent for a variety of surfaces such as windows, table tops, wooden surfaces, mirrors, baseboards. Since there are no minerals in deionized water, it leaves behind no residue, spots, or stains on surfaces.