Good morning! I am looking for information on safe temperature and humidity ratings in the OR. I live in south Texas and just like most of the country right now it is very hot. Last night, right before I was to take back a patient for an orbital/maxillary fracture, our chillers went out. My surgeon was informed of the situation and the patient was in the room (I took the pt back before anyone knew exactly what had happened). Within 15 minutes the floors and cabinets in my room were sweating. We completed the surgery with a temperature of 73 and humidity level of 66%. It seemed like no one I was working with last night knew what the standard was for safe temperature and humidity levels. I don't want to be clueless on this topic again. Thanks in advance for any information about this subject.