How to remove floating ash from white walls? After removing the TV, there are black and white marks, which are ugly.
Soak the towel in clean water, or dry it with a wet towel and wipe the wall repeatedly. If the original wall is painted with latex paint, this can be removed with a wet towel. If it is too dark, you can spray the range hood with Tianna water or detergent sold in the supermarket. This thing can get rid of the paint trademark, which is very powerful.