To Understand How Covid-19 Spreads Think of Tobacco Smoke

Of course it can also spread in larger droplets

Particle sizes in micrometers —

It surprises me that in developing and explaining public health guidelines for the current pandemic, experts haven’t made more use of the similarities in size between virus particles and tobacco smoke particles. Whether we are smokers or not, most of us are familiar with how tobacco smoke spreads indoors and outdoors…



Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Jim Mason

I study language, cognition, and humans as social animals. You can support me by joining Medium at