most people ignore the subtle smell of garlic.
it’s not strong enough.
the point of my fart analogy was to point out something people could and would recognize readily.
inhale cigarette smoke... put on the mask... exhale. what happens?
obviously, everyone will see and smell the smoke.
wake up
I got my vapor nicotine pipe, inhaled it and put on my mask. I couldn’t see any vapor going through the mask. If that vapor had the C-virus encapsulated in it, the mask worked.