Black and brown stains on the walls are usually difficult to clean. Although the walls are not cleaned very often, the cleanness of your walls gives your home a spacious look. You do not have to worry about soot stains caused by heating, your children painting the walls, grease splashes on the walls in the kitchen, stains and dirt caused by cigarette smoke. You can get clean walls by applying Asperox Magic Yellow to the stains on your wall and wiping it with a wet cloth after 5 seconds.