That is for short term use and changed for the next surgery. Wearing the same mask all day long is asking for bacteria and exotoxins to slowly poison you.
The company must provide the masks. Disposable and worthless but it’s the rule. But you can’t sit there with your face hanging out and tell me that people who are vaxxed are going to give up the virtue signal when they return to work. The masked will be non-vaxxed and virtue-signalers. I already know several people who will mask up in my office even though they have been vaxxed because they asked about it in a meeting.
But yes, the company can say masks are mandatory if you have not been vaxxed because they have been doing it for over a year.