All those poor doctors and medical staff, scientists, wood workers and the millions of people who wore masks precovid. They must all be suffering endlessly 
As a woodworker, I only wear a mask when necessary. I use dust collection to keep the dust out of the air in the first place. Anything still in the air is not a problem, as I work on a covered lanai.
The amount of time I use a dust mask is minimal -- usually for a few minutes as needed. Plus, if I feel I need to, I can take a short break away from the work area and REMOVE the mask.
If I'm working a job that requires my presence 8-10 hours a day, and there's no place to take a break without being around other people, that means I'm wearing a "COVID" mask for hours at a time.
People who worked in a mask pre-covid could take the mask off in areas in which they didn't need it EVEN IF there are other people in the area -- as opposed to COVID where PEOPLE are the reason to mask up.
You really are ignorant -- or just an argumentative Troll who doesn't mind lying to push a false point.