>you are statistically less likely to contract airbourne diseases with a mask on.
What are you basing this assessment on? Are all masks equal? Does training in mask application matter? For what duration are different types of masks effective?
What are you basing this assessment on? Are all masks equal? Does training in mask application matter? For what duration are different types of masks effective?
They do get less effective with time, exposure to moisture. Using alcohol to clean an N95 will significantly reduce its effectiveness.
Early on, Stanford did a study on various methods of sterilizing N95s and the change of effectiveness. Heat (70°C for 30 mins) was best.
https://news.stanford.edu/2020/04/01/researchers-show-how-to...