06/07/2026
Surgeons like the OR pretty cold 🥶
👉 Most operating rooms are typically kept somewhere around 68-73°F (20-23°C) with humidity often maintained between about 20-60%. I personally like it 68°F (20°C) or colder.
🥶 A lot of people assume the cold temperature is purely to reduce infection risk. However, too low of a core body temperature for the patient can actually increase their chances of infection because it impedes immune system function.
😷 The primary reason we keep it so cold is to prevent the operating room personnel from sweating. It can be pretty hot wearing a gown, mask, lead apron, and being under the hot operating room lights.
👉 Unfortunately for the anesthesiologist or CRNA, this can necessitate the need for sweaters, blankets, and even the occasional need for borrowing heat from a spare Bair hugger. Sorry, anesthesia, but thanks so much for taking good care of our patients during our procedures.