Bioesque Mold & Mildew Stain Remover provides the fastest acting and deepest cleaning available for erasing mold and mildew stains. Our innovative formula clings to the surface, allowing the advanced surfactants and Sodium Hypochlorite to penetrate deeper. This professional-grade formula is ready to use, simply apply with any corrosion-resistant sprayer and watch the stains disappear before your eyes. Our mold & mildew stain remover should not be used on metal. In the event product comes into contact with metal, rinse surface thoroughly to prevent oxidation. When using this product outside, be sure to protect/cover landscaping and plants. Bioesque Mold & Mildew Stain Remover is not a substitute for mold remediation - in order to kill fungal growth (mold removal or mildew removal), first, use Bioesque Disinfectant Solution as directed and then apply Bioesque Mold & Mildew Stain Remover to clean the mold and mildew stains. Follow cleaning by applying Bioesque Protect 90 to inhibit the growth of fungi (mold & mildew) for up to 90 days.