caa a22 4500 388033843 CHVBK 20180307124959.0 cr unu---uuuuu 161130e199810 xx s 000 0 eng 10.1086/647720 doi S0195941700005464 pii (NATIONALLICENCE)cambridge-10.1086/647720 Evaluation of a Room for Tuberculosis Patient Isolation Using Theatrical Fog [Elektronische Daten] Abstract Objective: To develop a method to evaluate directional airflow patterns, air dilution, and air mixing in facilities where tuberculosis patients are seen. Design: A tuberculosis patient isolation room was evaluated by analyzing pressure differential between the room and the corridor and by using theatrical fog to visualize room air movement and impact of dilution and exchange, as well as air capture and displacement. Tracer gas was compared to fog results and used to calculate air exchange rates. Setting: A small research hospital. Results: By adding theatrical fog to the patient room at several locations, we quickly learned that most of the air entering the room through the transom and around the door to the corridor was exhausted through the three exhaust vents. Little air appeared to move toward the exhaust fan. For comparison and to confirm the room air exchange rate, tracer gas was distributed and sampled. The kinetics of decay were very similar whether the tracer gas and room air were mixed during sampling or not. Conclusions: The fog procedure allowed good visual confirmation of air mixing and airflow patterns and provided quantitative data for evaluating the efficacy of air capture and displacement or dilution and exchange Copyright © The Society for Healthcare Epidemiology of America 1998 Gershey Edward L. The Rockefeller University, New York City, New York Reiman James Laboratory Safety Services Inc, Butler, New Jersey Wood William Laboratory Safety Services Inc, Butler, New Jersey Party Esmeralda The Rockefeller University, New York City, New York Infection Control & Hospital Epidemiology Cambridge University Press 19/10(1998-10), 760-766 0899-823X 19:10<760 1998 19 ICE https://doi.org/10.1086/647720 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1086/647720 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gershey Edward L. The Rockefeller University, New York City, New York NATIONALLICENCE 700 1- Reiman James Laboratory Safety Services Inc, Butler, New Jersey NATIONALLICENCE 700 1- Wood William Laboratory Safety Services Inc, Butler, New Jersey NATIONALLICENCE 700 1- Party Esmeralda The Rockefeller University, New York City, New York NATIONALLICENCE 773 0- Infection Control & Hospital Epidemiology Cambridge University Press 19/10(1998-10), 760-766 0899-823X 19:10<760 1998 19 ICE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge