I know C19 masks worn in public are ineffective. I can easily illustrate how I know this. It’s about mechanical filters. This is the discussion. Challenging me by pointing out I have no academic medical credentials isn’t even remotely germane. The effectiveness of a mechanical filter is the conversation, not how viral infection works.

If someone chooses to go maskless, just let them get sick and die. One less person not wearing a mask to worry about, and soon they will all be gone. Only then will we be truly safe.