Wearing a mouth mask provides 60% more protection than not wearing a mask.
Professor David Heymann (adviser to the World Health Organisation – WHO) says that wearing a mask is more efficient than keeping a 1.5m distance.
Corona virus stays in the air for a while
People keep coming out on the street and coughing around. Not everyone is as careful and coughs in the elbow or in a handkerchief. Mouth masks can be a greater obstacle to the virus in places where many people pass by, such as shops, busy streets and public transport.
Infected people can spread droplets even without coughing
Research shows that you stop 99% of drops if you cover your face with a piece of fabric. Even without coughing, infected people spread drops when speaking or breathing that can spread corona viruses.