Lockdown 24 Inch Dehumidifier Rod - Secure Your Firearm with Confidence The Golden Rod Dehumidifier works by slightly increasing the air temperature inside the gun safe or other enclosure. This allows the warm air to circulate throughout the safe on a continual basis, thus eliminating humidity, mildew, and condensation. Type: Gun Safe / Storage Dimensions: 24 Security: Lockable Color: Gold Firearm: No