Airborne Contamination Control through Directed Airflow in the Exam Room: A Pilot Study Using a Membrane Diffuser

Pati, Debajyoti; Pietrzak, Michael P.; Duthu, David; Lei, Ting-Kwo George; Vincent, David; Franklin, Tom; Harvey, Thomas E.; Ransdell, Troy

doi:https://doi.org/10.1260/2040-2295.1.4.655

Journal of Healthcare Engineering

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Research Article | Open Access

Volume 1 | Article ID 165318 | https://doi.org/10.1260/2040-2295.1.4.655

Airborne Contamination Control through Directed Airflow in the Exam Room: A Pilot Study Using a Membrane Diffuser

Debajyoti Pati,¹Michael P. Pietrzak,¹David Duthu,²Ting-Kwo George Lei,³David Vincent,¹Tom Franklin,²Thomas E. Harvey,¹and Troy Ransdell¹

Abstract

Airborne infections have been documented as a major source of hospital acquired infection - one of the major concerns in healthcare delivery. An important factor contributing to airborne infection is cross contamination through air particulate dispersion as affected by the ventilation system design. Clean room technology (with membrane ceiling) has been successfully used in technology and pharmaceutical industries to control airborne contamination. This study examined the performance of membrane ceiling technology in controlling air particulate dispersion in a mock-up exam room. It included both performance tests in a mock-up room and a simulation study of six different ventilation system designs using Computational Fluid Dynamics (CFD) analysis. Findings suggest that a membrane diffuser directed airflow ventilation strategy occupying approximately 20% to 30% of the ceiling surface and placed over the patient in a contemporary sized exam room provides a less turbulent airflow pattern and less mixing of the air between the patient and others in the room.

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Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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