“As for operating rooms not being oxygenated, please check your facts. Operating rooms are in fact fire hazards because of the extra oxygen.”
Operating rooms have a higher air pressure than surrounding rooms. This is so that when the OR door is opened potentially contaminated air doesn’t flow into the clean operating room. The level of oxygen (oxygen concentration) remains the same.
The only oxygen that is “pumped in” is whatever is being provided to the patient to assist their breathing during surgery and yes, this oxygen is a potential fire hazard as are other things like surgical drapes.
If the entire OR was infused with extra oxygen as some are claiming, OR fires would be happening on a daily basis as sparks are a frequent occurrence in surgery.