Sanford Expo Marker Board Cleaner - Whiteboard cleaner cleans and restores whiteboards so they look and perform like new. Nontoxic cleaner is perfect for classroom use and conference rooms. Cleaner lets you easily wipe away stubborn stains and ghosting. Nontoxic cleaner for whiteboards that is perfect for classroom and conference room use. Cleans and refreshes whiteboards. Simply spray and wipe with a soft cloth.