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Airborne infection isolation rooms - a review of experimental studies.

Authors
Hyttinen-M; Rautio-A; Pasanen-P; Reponen-T; Earnest-GS; Streifel-A; Kalliokoski-P
Source
Indoor Built Environ 2011 Dec; 20(6):584-594
NIOSHTIC No.
20040095
Abstract
Ventilation guidelines for airborne infection isolation rooms (AIIRs) are highly variable in different countries indicating lack of actual knowledge about the guidance needed. However, US guidelines for AIIRs are extensive and have been widely adopted outside the US. AIIR performance has also been evaluated in numerous studies. For a long time, the aim has mainly been to evaluate how well the existing AIIRs meet US guidelines. For historical reasons, mixing-type ventilation has been emphasised and attention has been paid to air exchange rates, although the use of auxiliary devices, such as portable room-air cleaners and ultraviolet germicidal irradiation systems, has also been examined. Recently, the scope of the investigations has been widened. The most crucial issue is to minimise the potential for disease transmission and prevent the escape of contaminated air from the AIIR. Airflow direction inside the AIIR is also important and AIIRs minimise air leakage to save energy. On the other hand, it has been observed that efficient containment can be achieved even by using simple and inexpensive construction by considering pressure differential and air flow patterns. Nevertheless, additional research is needed to assist hospitals with improving their preparedness to cope with the threat of pandemics by building and using effective AIIRs.
Keywords
Clean-rooms; Ventilation; Ventilation-systems; Infection-control; Medical-facilities; Air-contamination; Air-purification; Air-quality-control; Disease-control; Disease-transmission; Disease-prevention; Air-flow; Air-pressure; Hospital-equipment; Health-care-facilities; Health-protection; Engineering-controls; Controlled-environment; Air-treatment-equipment; Irradiation; Germicides; Author Keywords: Isolation room; Airborne infection; Ventilation strategies
Contact
Marko Hyttinen, Department of Environmental Science, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
CODEN
IBENFP
Publication Date
20111201
Document Type
Journal Article
Email Address
marko.hyttinen@uef.fi
Fiscal Year
2012
NTIS Accession No.
NTIS Price
Identifying No.
B01182012
Issue of Publication
6
ISSN
1420-326X
NIOSH Division
DART
Source Name
Indoor and Built Environment
State
OH; MN
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