There's a video I watched where an OSHA woman was talking about masks in operating rooms. She said that the ORs are supersaturated with oxygen to make up for the O2 deficit that the personnel experience there. She also said that most doctors and nurses were not aware of that fact. This is not the video I watched (and apparently did not download) but I offer this link: https://bit.ly/3m0L58l
Surgical masks are perfect for surgeons who don't want to get blood splashed into their mouth.
There's a video I watched where an OSHA woman was talking about masks in operating rooms. She said that the ORs are supersaturated with oxygen to make up for the O2 deficit that the personnel experience there. She also said that most doctors and nurses were not aware of that fact. This is not the video I watched (and apparently did not download) but I offer this link: https://bit.ly/3m0L58l