Comparison between Hospital Single Air Unit and Central Air Unit for Ventilation Performances and Airborne Microbes

Ventilation performance in two units equipped with a single, hanging air conditioner having no filter, and another two units equipped with a central air conditioner with HEPA filter were compared for the air change rate, air velocity profile, and microbe concentration in a 814-bed public hospital fr...

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Bibliographic Details
Published in:Aerosol and Air Quality Research 2008-03, Vol.8 (1), p.28-36
Main Authors: Chuaybamroong, Paradee, Choomseer, Piyapong, Sribenjalux, Pipat
Format: Article
Language:English
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Summary:Ventilation performance in two units equipped with a single, hanging air conditioner having no filter, and another two units equipped with a central air conditioner with HEPA filter were compared for the air change rate, air velocity profile, and microbe concentration in a 814-bed public hospital from February to May 2006. It was found that microbe concentrations in units using a single air conditioner were about two times higher than those in central air conditioner units. Within the same type of air conditioner, increasing ventilation rate resulted in decreased microbe concentrations.
ISSN:1680-8584
2071-1409
DOI:10.4209/aaqr.2007.04.0027