| Whole house particle removal and clean air delivery rates for in-duct and portable ventilation systems. | |
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MedLine Citation:
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PMID: 19044163 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A novel method for determining whole house particle removal and clean air delivery rates attributable to central and portable ventilation/air cleaning systems is described. The method is used to characterize total and air-cleaner-specific particle removal rates during operation of four in-duct air cleaners and two portable air-cleaning devices in a fully instrumented test home. Operation of in-duct and portable air cleaners typically increased particle removal rates over the baseline rates determined in the absence of operating a central fan or an indoor air cleaner. Removal rates of 0.3- to 0.5-microm particles ranged from 1.5 hr(-1) during operation of an in-duct, 5-in. pleated media filter to 7.2 hr(-1) for an in-duct electrostatic air cleaner in comparison to a baseline rate of 0 hr(-1) when the air handler was operating without a filter. Removal rates for total particulate matter less than 2.5 microm in aerodynamic diameter (PM2.5) mass concentrations were 0.5 hr(-1) under baseline conditions, 0.5 hr(-1) during operation of three portable ionic air cleaners, 1 hr(-1) for an in-duct 1-in. media filter, 2.4 hr(-1) for a single high-efficiency particle arrestance (HEPA) portable air cleaner, 4.6 hr(-1) for an in-duct 5-in. media filter, 4.7 hr(-1) during operation of five portable HEPA filters, 6.1 hr(-1) for a conventional in-duct electronic air cleaner, and 7.5 hr(-1) for a high efficiency in-duct electrostatic air cleaner. Corresponding whole house clean air delivery rates for PM2.5 attributable to the air cleaner independent of losses within the central ventilation system ranged from 2 m3/min for the conventional media filter to 32 m3/min for the high efficiency in-duct electrostatic device. Except for the portable ionic air cleaner, the devices considered here increased particle removal indoors over baseline deposition rates. |
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Authors:
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David L Macintosh; Theodore A Myatt; Jerry F Ludwig; Brian J Baker; Helen H Suh; John D Spengler |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of the Air & Waste Management Association (1995) Volume: 58 ISSN: 1096-2247 ISO Abbreviation: J Air Waste Manag Assoc Publication Date: 2008 Nov |
Date Detail:
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Created Date: 2008-12-02 Completed Date: 2009-01-06 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9503111 Medline TA: J Air Waste Manag Assoc Country: United States |
Other Details:
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Languages: eng Pagination: 1474-82 Citation Subset: IM |
Affiliation:
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Environmental Health & Engineering, Inc., Needham, MA 02494, USA. dmacintosh@eheinc.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollutants, Occupational
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analysis* Air Pollution / analysis* Environmental Monitoring / statistics & numerical data* Meteorology / statistics & numerical data* Models, Statistical* Oxidants, Photochemical / analysis* Ozone / analysis* Thailand Vietnam Weather |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants, Occupational; 0/Oxidants, Photochemical; 10028-15-6/Ozone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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