The normal cleaning of all wallpaper walls is to vacuum the walls regularly, and use suction heads instead of vacuum cleaners. Special stains found in daily life should be wiped off in time. The method is to spray detergent on the waterproof wallpaper wall. 10- 15 minutes later, the stain will separate from the fiber. While cleaning the wallpaper and wall covering, suck up the washed wallpaper and wall covering with a water suction machine. For waterproof walls, you can clean them with a dry cloth or rag, or you can wipe them with a rubber or towel dipped in some cleaning liquid and then gently wipe them. In short, remove the dirt in time, otherwise it will leave permanent spots after a long time.