Eva-Dry Hi Cap Renewable Dehumifier - Protect What MattersEngineered with non-toxic crystallized desiccant technology, the Eva-Dry mini dehumidifier will quickly and efficiently absorb up to 4 to 6 oz of moisture from the air, without any leaks or spills. As the device absorbs the humidity, our moisture indicator beads will turn from orange to green, indicating that it&';s time to renew the unit for 10-12 hours. Repeat the process for up to 10 years!Features : Rechargeable Perfect for Safes Non Toxic