A simple, slightly damp cloth is more than enough to clean your box. You can possibly use alcohol to clean the sensitive parts. During this cleaning, do not forget the needle 510 (the part where the clearomizer is screwed) which can help you with a cotton swab. Moisten a microfiber cloth or paper towel with alcohol and clean the target areas until they are clean. Then wipe and rinse with warm water. You can also use a jewelry cleaning machine to remove stubborn deposits, if necessary.