Effectiveness of a personalized ventilation system in reducing personal exposure against directly released simulated cough droplets
The inhalation intake fraction was used as an indicator to compare effects of desktop personalized ventilation and mixing ventilation on personal exposure to directly released simulated cough droplets. A cough machine was used to simulate cough release from the front, back, and side of a thermal man...
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| Veröffentlicht in: | Indoor air 2015-12, Vol.25 (6), p.683-693 |
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| container_title | Indoor air |
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| creator | Pantelic, J. Tham, K. W. Licina, D. |
| description | The inhalation intake fraction was used as an indicator to compare effects of desktop personalized ventilation and mixing ventilation on personal exposure to directly released simulated cough droplets. A cough machine was used to simulate cough release from the front, back, and side of a thermal manikin at distances between 1 and 4 m. Cough droplet concentration was measured with an aerosol spectrometer in the breathing zone of a thermal manikin. Particle image velocimetry was used to characterize the velocity field in the breathing zone. Desktop personalized ventilation substantially reduced the inhalation intake fraction compared to mixing ventilation for all investigated distances and orientations of the cough release. The results point out that the orientation between the cough source and the breathing zone of the exposed occupant is an important factor that substantially influences exposure. Exposure to cough droplets was reduced with increasing distance between cough source and exposed occupant. |
| doi_str_mv | 10.1111/ina.12187 |
| format | Article |
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The results point out that the orientation between the cough source and the breathing zone of the exposed occupant is an important factor that substantially influences exposure. Exposure to cough droplets was reduced with increasing distance between cough source and exposed occupant.</description><identifier>ISSN: 0905-6947</identifier><identifier>EISSN: 1600-0668</identifier><identifier>DOI: 10.1111/ina.12187</identifier><identifier>PMID: 25615014</identifier><language>eng</language><publisher>England: Blackwell Publishing Ltd</publisher><subject>Aerosols ; Air Movements ; Air Pollution, Indoor ; Breathing ; Computer Simulation ; Cough ; Desktop personalized ventilation ; Droplets ; Exposure ; Exposure fraction ; Humans ; Intakes ; Manikins ; Mixing ventilation ; Personalized ; Simulation ; Thermal manikin ; Ventilation</subject><ispartof>Indoor air, 2015-12, Vol.25 (6), p.683-693</ispartof><rights>2015 John Wiley & Sons A/S. 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W.</creatorcontrib><creatorcontrib>Licina, D.</creatorcontrib><title>Effectiveness of a personalized ventilation system in reducing personal exposure against directly released simulated cough droplets</title><title>Indoor air</title><addtitle>Indoor Air</addtitle><description>The inhalation intake fraction was used as an indicator to compare effects of desktop personalized ventilation and mixing ventilation on personal exposure to directly released simulated cough droplets. A cough machine was used to simulate cough release from the front, back, and side of a thermal manikin at distances between 1 and 4 m. Cough droplet concentration was measured with an aerosol spectrometer in the breathing zone of a thermal manikin. Particle image velocimetry was used to characterize the velocity field in the breathing zone. Desktop personalized ventilation substantially reduced the inhalation intake fraction compared to mixing ventilation for all investigated distances and orientations of the cough release. The results point out that the orientation between the cough source and the breathing zone of the exposed occupant is an important factor that substantially influences exposure. Exposure to cough droplets was reduced with increasing distance between cough source and exposed occupant.</description><subject>Aerosols</subject><subject>Air Movements</subject><subject>Air Pollution, Indoor</subject><subject>Breathing</subject><subject>Computer Simulation</subject><subject>Cough</subject><subject>Desktop personalized ventilation</subject><subject>Droplets</subject><subject>Exposure</subject><subject>Exposure fraction</subject><subject>Humans</subject><subject>Intakes</subject><subject>Manikins</subject><subject>Mixing ventilation</subject><subject>Personalized</subject><subject>Simulation</subject><subject>Thermal manikin</subject><subject>Ventilation</subject><issn>0905-6947</issn><issn>1600-0668</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkU1v1DAQhi1ERbeFA38AWeJCD2ltx185Vqt2W1FtLyCOlpNMFpckDnYCXa78cbyk3UOlSp3LjORnHo38IvSeklOa6sz19pQyqtUrtKCSkIxIqV-jBSmIyGTB1SE6ivGOEKryIn-DDpmQVBDKF-jvRdNANbpf0EOM2DfY4gFC9L1t3R-ocXoYXWtH53sct3GEDrseB6inyvWbPYvhfvBxCoDtxro-jrh2IYnbbWJbsDGpouumZEpT5afNd1wHP7QwxrfooLFthHcP_Rh9vbz4srzKbm5X18vzm6wSBVVZzlTdECYlE6QQlpRSSZtrqbkFVoia00IpC2WpOCt5ozjRUDCrG9VQqS3Nj9Gn2TsE_3OCOJrOxQra1vbgp2ioUiTnSkn2AlRQRpgu9AvQnCrNidod8PEJeuenkH5vpghngu-ok5mqgo8xQGOG4DobtoYSs8vbpLzN_7wT--HBOJUd1HvyMeAEnM3Ab9fC9nmTuV6fPyqzecOlsO_3Gzb8MFLlSphv65X5fLleLdlVGvJ_YvrD6Q</recordid><startdate>201512</startdate><enddate>201512</enddate><creator>Pantelic, J.</creator><creator>Tham, K. 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| fulltext | fulltext |
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| ispartof | Indoor air, 2015-12, Vol.25 (6), p.683-693 |
| issn | 0905-6947 1600-0668 |
| language | eng |
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| source | Wiley-Blackwell Journals; MEDLINE |
| subjects | Aerosols Air Movements Air Pollution, Indoor Breathing Computer Simulation Cough Desktop personalized ventilation Droplets Exposure Exposure fraction Humans Intakes Manikins Mixing ventilation Personalized Simulation Thermal manikin Ventilation |
| title | Effectiveness of a personalized ventilation system in reducing personal exposure against directly released simulated cough droplets |
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