Fine Guard Kids Reusable mask uses top secret LIVINGUARD technology that protects your kids from those pesky germs. So, you can be FEARLESS! It is the only Kids Mask proven to kill 99.9% of viruses on contact, protected by patented Swiss Technology Livinguard. LIVINGUARD� uses a novel approach of neutralizing bacteria and viruses on a molecular level which uses charged ions to disrupt the atomic structure of bacteria and/or viruses, rendering them "inactive". LIVINGUARD� Technology actually sterilizes the air that passes through the mask, killing bacteria and viruses that can slip through. This means the air you are breathing through Fine Guard is as "clean as Swiss air". Comes with colorful, fun patterns, best for kids between 6-12 years old. Reusable for 1 year+ and washable 30 times with hand soap & cold water with superior infection prevention for every use. The only mask in the world endorsed by the physicians of the Medical Wellness Association based in Houston, Texas, for prevention of infection.