Markings can be wiped off with a moistened cleansing tissue or soft, damp cloth. Household dust can be removed with a dry cloth, though you may wish occasionally to use a slightly dampened cloth to remove fingerprints or smudges. A mild, non-abrasive product is recommended for difficult marks. Do not use industrial or even household cleaners that contain alcohol or any solvent. Some acrylic and special purpose globes can be marked with a grease pencil or with a dry erase marker, and safely wiped clean with a soft cloth.