Use dry-erase markers of good quality designed for whiteboards. These markers are easy to wipe off and won’t leave any residue
If your whiteboard has become heavily stained or the markers are difficult to erase, you may need to use a whiteboard cleaner available at the stationery shop.
Never use permanent markers, which can leave permanent stains on your whiteboard.
Be sure to store your whiteboard in a dry place, as moisture can cause the board to fungi and become non-usable.
If you need to store your whiteboard for an extended period, cover it with a whiteboard cover or a protective sheet, this will prevent dust and dirt from accumulating on the surface.