Yes, they do! Wearing a mask in public is essential in slowing the spread of COVID-19, particularly until an effective vaccine can be distributed. Our team at AFC Urgent Care Chattanooga explains why below. What Do Masks Do? Masks limit the amount of respiratory droplets in the air and protect the wearer’s nose and mouth from contact with other droplets, splashes and sprays that may contain germs. The World Health Organization and the CDC ...