NEW & SEALED This Charcoal Moisture Eliminator Dehumidifier can be used in RV's, Campers, Boats, Gun Safes, Laundry Rooms, Closets, Cupboards, Equipment Rooms or any location that needs to stay dry. No Electricity Needed. This small size Moisture Eliminator works Great. We used them in our Motorhome when in storage mostly. They do not run over. This is a great investment to prevent too much Humidity in areas where mold could grow. This is a very safe (please read warnings shown on the container) when used properly.