Per CDC, the coronavirus is airborne, and that it can be transmitted between people. Researchers believe that the virus may have made the jump from animals to people via the inhalation of airborne particles in a seafood market that sold live wild animals. So it makes sense to cover your nose and mouth.
N95 respirators offer more protection. Such devices are designed to prevent 95 per cent of small particles from entering the nose and mouth area. But they only work if they fit properly, and aren’t suitable for children or people with facial hair.
N95 respirators can also make it more difficult for a person to breathe, so could be dangerous for someone showing symptoms of infection of the new coronavirus, which include coughing and shortness of breath.