Why is it recommended that the public wear a mask? Respiratory viruses, such as the novel coronavirus SARS-CoV-2, can be transmitted by droplets that are ejected from our mouths when we speak, cough or sneeze. Wearing a mask traps droplets and can reduce the spread of infection in the community. The main purpose of wearing a mask is to protect the people around you if you are infected. At the same time, physical distance, hand hygiene and the correct way of using the mask should be observed. The mask should not be used on children under 3 years of age and on people who have breathing problems or cannot remove it without help.