"It's my understanding that the virus is transmitted in water droplets which are trapped in the mask."

The key word there is "trapped".

Not sure how much confidence I put there in that whatever enters the mask upon breathing in cannot be just blown back out when exhaling.

Maybe I need to drink more Koolaid. biggrin

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.