If masks worked, why do they go through the expense and trouble of using “space suits” in Level 4 labs?
Bounced2X wrote: “If masks worked, why do they go through the expense and trouble of using “space suits” in Level 4 labs?”
Because masks aren’t 100% effective but ‘space suits’ are.
You’re making the classical anti-vaxxer claim of saying that anything that isn’t 100% effective doesn’t work.