"Researchers simulated droplet dispersal from a heavy cough using different types of common masks."I can see where they would be helpful around people that are coughing. I have also noticed how careful people have been to not cough around others during this virus thing. If a person is around a bunch of sick coughing people or are themselves sick and coughing, I think they would be a good idea. John
Edited by John Burns 8/9/2020 08:59
|