To clean your whiteboard, you will need a moistened cloth and a small amount of cleaner. Gently rub the damp cloth in a circular motion all over the board. If your whiteboard has stains, you can create a cleaning solution by combining isopropyl alcohol and water.
To eliminate permanent marker stains, write over them with a new dry-erase marker. Wait a few seconds for it to dry, and then wipe away the marks with a felt eraser. Finally, rinse the board with water until it is completely clean.