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dc.contributor.authorHuang, Ruthen_US
dc.contributor.authorAgranovski, Igoren_US
dc.contributor.authorPyankov, Olegen_US
dc.contributor.authorGrinshpun, S.en_US
dc.date.accessioned2017-04-24T10:13:42Z
dc.date.available2017-04-24T10:13:42Z
dc.date.issued2008en_US
dc.date.modified2009-10-09T06:12:59Z
dc.identifier.issn09056947en_US
dc.identifier.doi10.1111/j.1600-0668.2007.00512.xen_AU
dc.identifier.urihttp://hdl.handle.net/10072/23540
dc.description.abstractContinuous emission of unipolar ions has been shown to improve the performance of respirators and stationary filters challenged with non-biological particles. In this study, we investigated the ion-induced enhancement effect while challenging a low-efficiency heating, ventilation and air-conditioning (HVAC) filter with viable bacterial cells, bacterial and fungal spores, and viruses. The aerosol concentration was measured in real time. Samples were also collected with a bioaerosol sampler for viable microbial analysis. The removal efficiency of the filter was determined, respectively, with and without an ion emitter. The ionization was found to significantly enhance the filter efficiency in removing viable biological particles from the airflow. For example, when challenged with viable bacteria, the filter efficiency increased as much as four- to fivefold. For viable fungal spores, the ion-induced enhancement improved the efficiency by a factor of similar to 2. When testing with virus-carrying liquid droplets, the original removal efficiency provided by the filter was rather low: 9.09 +/- 4.84%. While the ion emission increased collection about fourfold, the efficiency did not reach 75-100% observed with bacteria and fungi. These findings, together with our previously published results for non-biological particles, demonstrate the feasibility of a new approach for reducing aerosol particles in HVAC systems used for indoor air quality controlen_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherBlackwell Publishingen_US
dc.publisher.placeOXON, ENGLANDen_US
dc.publisher.urihttp://www.wiley.com/bw/journal.asp?ref=0905-6947en_AU
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom106en_US
dc.relation.ispartofpageto112en_US
dc.relation.ispartofissue2en_US
dc.relation.ispartofjournalINDOOR AIRen_US
dc.relation.ispartofvolume18en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchEnvironmental Technologiesen_US
dc.subject.fieldofresearchcode090703en_US
dc.titleRemoval of viable bioaerosol particles with a low-efficiency HVAC filter enhanced by continuous emission of unipolar air ionsen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Engineeringen_US
gro.date.issued2008
gro.hasfulltextNo Full Text


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