Anesthetic levels in OR often high; hygienist suggests safety measures.
D000388:Air; D000395:Air Pollutants, Occupational / Q000009:adverse effects; D000397:Air Pollution / Q000517:prevention & control*; D000777:Anesthetics / Q000009:adverse effects*; D006801:Humans; D009873:Operating Rooms / Q000592:standards*