Silver Defender products are made in the USA and contain an antimicrobial agent to protect the film from bacteria, mold, mildew and fungi to ensure the product is clean. Silver ions react with and affect multiple sites in bacterial cells on the surface of the film, to keep the film clean. Silver Defender products have built in antimicrobial protection to guard against degradation from microorganisms. Silver Defender is the only product of its kind to have initiated EPA pesticide registration. Silver Defender is a patent pending, specifically designed, high-quality film, which can be applied to any surface for all industries. These industries include airports, cruise ships, grocery stores, restaurants, retail stores, banks, malls, schools, and office buildings. Our products deliver clean surfaces that you can see.Our nontoxic products are developed for high traffic areas and can be used on all common touch points and shared surfaces. Our stretchable films can cover any type of surface, including door handles, elevator buttons, subway handles, buses, grocery shopping cart handles, water fountains, railings, bathroom doors, toilet flush handles, bathroom sink handles, bathroom stall locks, just to name a few. Our films last for 90 days and are replaced quarterly.