6 are out with Covid and all of them have been vaccinated...Wait it out, they need people. Get a fake mask that lets you breathe and use it only at the last minute. Then take that off as much as possible to see how much they challenge you. They will probably give up before you do.
I would also put this link 40 times on a sheet of paper, print it (at the office if they allow limited personal printing) and cut it into strips with one link on them, then pass it out to everyone at the office.
https://rumble.com/vrppwa-over-150-studies-find-that-wearing-masks-makes-no-difference-stopping-the-s.html