Our mildew gels contain deionized water, lemon extract, and surfactants. It can remove black mold from any surface, clean long-attached black stains, and make the home environment cleaner. Its use method is very simple: thoroughly dry the parts that need to be removed; Apply appropriate amount of gel to moldy areas; Apply evenly with a spatula; Wait 3-5 hours for it to dissolve, then rinse with water. It can reduce odors and odors, eliminate damp odors in the home, and make the air in the home cleaner.