Originally Posted by Jim_Conrad
Have you exhaled through your super effective mask at zero degrees Fahrenheit?



Great question. Observe someone exhaling through a KN95 in cold weather and someone with no face covering in cold weather. What you'll quickly see is that the KN95 traps some of the vapor particles. In an infected person, those vapor particles contain the pathogen. Fewer particles mean lower odds of contracting and lower viral load if the disease is contracted. It's truly amazing how that simple and irrefutable truth escapes so many. These videos illustrate the simple concept.

https://www.youtube.com/watch?v=DNeYfUTA11s

https://www.youtube.com/watch?v=0Tp0zB904Mc