A revolutionary advancement in dehumidifying, the Eva-Dry Air Dry System takes Eva-Dry’s proven silica gel dehumidifying technology to the next level. While ordinary silica gels can take 8-10 hours to dry out after saturation, the Air Dry System requires two hours or less – reducing standard “dry out” times by as much as 80%! Our value-packed bundle (a $64.95 value), includes a drying base and two dehumidifying cylinders. Simply swap them out to ensure continuous, ultra-efficient moisture control for your gun safes, foot lockers, boots, closets and more! Since each dehumidifying cylinder can handle an area up to 400 cubic feet, you’ll find endless ways to protect your household from harmful moisture.