Some masks work better to help stop the spread of COVID-19 outside of healthcare settings. Medical masks and N-95 respirators should not be used because they should be conserved for healthcare workers.
https://www.cdc.gov/coronavirus/2019...-guidance.html
CDC does not recommend using face shields or goggles as a substitute for masks.
Face shields have large gaps below and alongside the face, where your respiratory droplets may escape and reach others around you. At this time, we do not know how much protection a face shield provides to people around you.