Kronos Advanced Technologies, Inc Announces Test Results from Nelson Labs Demonstrating Significantly Enhanced Bacterial Filtration Efficiency and Viral Filtration Efficiency
The U.S. Centers for Disease Control and Prevention (CDC) recommends masks for the general public. If you're fully vaccinated and are in an area with a high number of new COVID-19 cases, the CDC recommends wearing a mask indoors in public and outdoors in crowded areas or when one is in close contact with unvaccinated people. People who haven't been fully vaccinated should wear face masks indoors and outdoors where there is a high risk of COVID-19 transmissions, such as crowded events or large gatherings.