2. For moldy wall covering, you can use Dr. wall covering's mildew remover to remove mildew spots. The operation method is as follows: di is directly sprayed with moldy wall covering. Moldy can be sprayed once effectively, and moldy can be sprayed several times more (treated the next day). Second, dip the mildew-removing liquid medicine repeatedly on the long mold with a dry cloth or brush, which can better make the mildew-removing liquid medicine absorb and penetrate into the mold. The third method is to spray the mildew remover on the towel or paper towel for the material without adsorption, and then stick the soaked towel or paper towel on the moldy place, so that the mildew remover can adhere to the moldy thing for a long time, thus achieving the effect of mildew removal.