4 Individually sealed VCI-101 devices. VCI-101 devices are designed to provide corrosion protection for metal components and parts enclosed in non-ventilated control boxes, cabinets or tool boxes. A VCI-101 device protects up to 1 cubic foot (28 liters) in volume. VCI-101 is a small patented foam device from which Vapor phase Corrosion Inhibitors are slowly released. The VCIs emit vapors that form a molecular layer on metal surfaces to protect critical, complex and expensive electronic equipment and other metal components during operations, shipping or storage. VCI-101 provides long-term protection against corrosion even in the presence of adverse conditions including salt, moisture, airborne contaminants, H2S, SO2, NH3 and others.