Positive or negative. How to test isolation rooms for negative air pressure.
D000399:Air Pressure; D002487:Centers for Disease Control and Prevention, U.S.; D004784:Environmental Monitoring / Q000379:methods*; D006801:Humans; D016273:Occupational Exposure / Q000517:prevention & control / Q000592:standards; D010357:Patient Isolators / Q000592:standards*; D012906:Smoke; D014376:Tuberculosis / Q000517:prevention & control*; D014481:United States; D014489:United States Occupational Safety and Health Administration