My-Shield forms a microbe/germ killing nano polymer barrier on skin for 4 - 8 hours, surfaces for 28 days, COVID-19 for 30 days, and fabrics for 28 days. Clinically proven to kill bacteria at a 99. 999% rate, viruses including COVID-19 at 99.99% (up to 30 days), wet kill at 30 seconds, and continued kill rates when dry.