Face masks can help slow the spread of the coronavirus (SARS-CoV-2) that causes COVID-19 combined with other preventive measures, such as frequent hand-washing and social distancing.
CDC recommends that everyone wear a mask over their nose and mouth when in public, including on public transportation and in transportation hubs such as airports and stations. Masks slow the spread of COVID-19 because they help keep people who are infected from spreading respiratory droplets to others when they cough, sneeze, or talk. Disposable medical masks and N-95 respirators are for healthcare workers and other first responders, as recommended by current CDC guidance. Reusable masks are cost effective and better for the environment.