Makes no difference. The droplets may be slowed down, but eventually they are inhaled and at some point exhaled back out.
Masks are bacterial concentrators and they will concentrate but not stop viruses and droplets.
Look at what they are wearing in a virus isolation room or lab. It isn’t masks, it is a full up, sealed, bio suit.
It depends on the length of exposure.
Most people have short exposure in real life.
Heck, most of the time they don’t need even a mask.
But when they do... well, they should wear one.
>> “Makes no difference. The droplets may be slowed down, but eventually they are inhaled and at some point exhaled back out.”<<
Seems to me that, if not propelled, most of the droplets would “drop” to the ground before reaching anyone.
The better protection that lab workers have would be nice to have, but they are like workers around radiation. They need more protection than the rest of us do.
I’ll continue to assume that a little protection is better than none. I favor opening up the economy and the schools, but with continued protections for persons in the higher risk categories.