See how a cough travels without a mask and with

A lab at Florida Atlantic University is simulating a human cough to understand how far and fast cough droplets can spread. The droplets travel as far as 12ft in 30 to 40 seconds.

View here (CNN, May 4, 2020)

Case for wearing face masks (2): Microdroplets pose coronavirus risk

‘An NHK experiment found that microdroplets emitted while sneezing and coughing and during conversations stay in the air for longer than normal droplets, potentially posing a uniquely dangerous risk for coronavirus infection.’

View here (NHK, March 31, 2020)