Yep my old job has charts on the wall of what mask to wear for what. Too many people told HR to reference the chart about their silly wear surgical masks policy so they took it down.

The chart said for small particles you should use the big air tank included filter things and then take breaks every few hours. It also said it was dangerous to wear N95's or a cloth covering all day. I wish I took a picture but there was no phones on the floor and I didn't think you could take down safety signs. It really made me understand what the pandemic is. These people break all rules to control us and making people sick is a plus.