Where has it been proven?
You were shown studies that show they help.
You were explained the mechanics of how masks work to reduce spread.
In response all you have are baseless assertions that it’s not so and you imagine yourself to have proven something?
You live on the fucking moon.
Studies from 2021. Later studies PROVE that they don't.
I love how you retards refuse to look at anything done past 2021.
Like I said, you anti science religious nutjobs are all alike.