Mold Cleaner is a ready- to-use, powerful specialty cleaner specifically formulated to remove mold, mildew and even algae on natural stone, tile, masonry and grout. It quickly dissolves unsightly mold and mildew stains without degrading or harming the surface. Mold Cleaner features a foaming action sprayer that allows the cleaner to adhere well to vertical applications and avoid messy drips. Great for bathroom showers and vanities, kitchen countertops, backsplashes, patios and more.