Cortec's Bio-Emitterrust blocker shield offers easy-to-use protection from rust and corrosion on metals stored in enclosed spaces as large as 50 cubic feet. All users need to do is attach the environmentally safe BioEmitter onto a clean surface inside an enclosed area to ensure tools and other items are protected. The BioEmitter takes up less than a square foot of space and is conveniently packaged in a vented cardboard box. This allows the company's Vapor phase Corrosion Inhibitors (VpCIs) to migrate throughout the surrounding space to form an invisible molecular shield on metal surfaces, sealing off air and moisture. The Bio-Emitter provides long-term protection against corrosion even in the presence of adverse conditions, including salt, moisture, airborne contaminants, H2S, SO2, NH3 and others.