Learn more about different types of masks and face coverings, how they protect against infection from COVID-19, and how to select which type of mask to wear from Dr. Claudiu Lungu, Professor of Environmental Health Sciences at the University of Alabama at Birmingham School of Public Health. This video was created in partnership between the Alabama Regional Center of Infection Prevention and Control Training and Technical Assistance (ARC IPC) and the Deep South Center for Occupational Health and Safety.