BioShield75 positively charged polymer from RestBest-SmartGuard is designed to mitigate touch-point contamination for up to 90 days with one application. The U.S. EPA-registered nanotechnology chemically bonds to treated surfaces, producing a large amount of quaternary amine swords that puncture bacterial cell membranes to eliminate any possibility of continued bacterial growth, mold, odor and mildew. The cured surface is safe, nontoxic, non-leaching and harmless to human and animal contact. It can be safely and easily applied without affecting day-to-day operations. 800/745-9837; www.restbest.net.