Product Review

Emits a vapor that forms a corrosion/rust resistant "barrier" On metal. It's not too good to be true. A second level of protection along with your dehumidifier. Small capsule emits an invisible vapor that forms a corrosion and rust resistant barrier on metal surfaces. Volatile corrosion inhibitors (vices) have been used for years to protect metal parts in industrial and commercial applications. One capsule protects a standard 30" Wide safe for one year.