Salt Lamps absorb moisture from the air, and when they are turned off they can Shed or “cry” if the weather is quite humid or if you live close to the beach or a lake.If you do need to have it turned off for a long period of time, please wrap in a plastic bag or cling wrap to prevent shedding. Or leave on a plate. For extra precaution, you can remove the cord and globe from within the lamp, in case of a moisture build up.