Ventilation and air conditioning as bacteriologic engineering.
D000389:Air Conditioning; D000391:Air Microbiology; D000985:Antisepsis; D002353:Carrier State; D003428:Cross Infection / Q000517:prevention & control*; D004391:Dust; D004781:Environmental Exposure; D006801:Humans; D009873:Operating Rooms; D014691:Ventilation
D004391:Dust