As stated in one of the many health documents that I've archived since the whole Covid-19 debacle began in 2020.
-NW

Coronavirus Pt 4: Masks Don’t Protect
Dr. Sherri Tenpenny, DO, AOBNMM, ABIHM Coronavirus Pt 4: Masks Don't Protect
July 16, 2020

[snip]

Over the last several months, the battle lines regarding COVID19 have been drawn around the concept of masking. Wearing a mask has become a symbol of staying together, of “doing something” to protect someone from getting sick with this generally mild infection. The behavior of those who obsessively wear a mask, and scream at others who don’t, seem similar to those who vaccinate their children but forbid unvaccinated children in their playdates. I want to respond the same to both groups: “If your mask is protecting you, why are you concerned that I’m putting myself at risk of the flu? ” (similar to “if your vaccines work, what are you worried about?”)

After reviewing more than 50 articles, here’s what I’ve discovered:

• Coronavirus (droplets) are < 0.125 microns in size. Masks and respirators filter particles 0.30 to 0.80 microns in size. Masks cannot possibly work. No bias-free study has ever found a benefit from wearing a mask or respirator in this application.