Mold Black Stain Cleaner Removes Tough Molds and Mildews Stains: Our Instant Spray Cleaner removes stains left by black molds and mildews. They tend to leave ugly stains that can go deep below the surface. Removes Unwanted Odors: Keeps your home free of musty, damp odors that are often left behind by other sprays; our spray is ideal for use in kitchens, bathroom areas, drywalls and vinyl shower curtains. Instant Spray: Our instant molds stain remover spray instantly removes deep-seated stains between bathroom tiles, grout lines, under sinks and on shower doors. No scrubbing required: simply spray our readying-to-use formulation onto affected areas and the stain will disappear before your eyes!.