Performance of Electret Filters for Use in a Heating, Ventilation and Air Conditioning System and an Automotive Cabin Against Combustion and NaCI Particles

Details

• Personal Author:
  Elmasae Y ; Gao S ; Grinshpun SA ; He X ; Kim J-Y ; Reponen T ; Yermakov M
• Description:
  This study was conducted to investigate the performance of a high-efficiency Heating, Ventilation and Air Conditioning (HVAC) filter and a top-of-the line Automotive Cabin Air (ACA) filter challenged with particles generated by the combustion of paper, wood, and plastic as well as with NaCl particles. The collection of submicron particles was examined under conditions representing two typical indoor air flow rates for the HVAC filter and two cabin fan control levels for the ACA filter. For the HVAC filter, almost all the collection efficiency values exceeded 80%; for the ACA filter, the collect efficiencies were much lower (< 40%) for all the tested aerosols and flow rates. Both filters demonstrated lower collection efficiency for combustion aerosols as compared to NaCl. This finding was consistent for all tested particle sizes and flow rates. The difference was always statistically significant in terms of the total efficiency (combining all sizes); however, the size-specific analysis of the differences revealed that the significance level varied with the particle size and flow rate. When tested under their operational flow conditions, the HVAC filter showed significantly better performance than the ACA filter. It was concluded that the filter performance characteristics of the HVAC and ACA filters obtained using wellestablished salt aerosol challenges may not accurately predict the performance of these filters against combustion aerosol particles. The difference was attributed to the interactions between the particles and filter fibers. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Movements Air Pollution, Indoor Electricity Occupational Health Particulate Matter Safety Ventilation
• Keywords:
  Air Conditioning Air Flow Author Keywords: HVAC Filter Automotive Cabin Air Filter Collection Efficiency Combustion Combustion Aerosols Electrical Equipment Electrical Properties Filters Heating Systems IAQ Indoor Air Quality NaCl Particulates Ventilation Systems

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• ISSN:
  1680-8584
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 3 ; OSHA Region 5 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  16
• Issue:
  6
• NIOSHTIC Number:
  nn:20049884
• Citation:
  Aerosol Air Qual Res 2016 Jun; 16(6):1523-1531
• Contact Point Address:
  Sergey A. Grinshpun, Center for Health-Related Aerosol Studies, Department of Environmental Health, University of Cincinnati, Cincinnati, Ohio 45267
• Email:
  sergey.grinshpun@uc.edu
• CAS Registry Number:
  Sodium chloride (CAS RN 7647-14-5)
• Federal Fiscal Year:
  2016
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Aerosol and Air Quality Research
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2162d232ab511596815e5bfca7d9dae48ea5bdddf87bf6391e9f8d19cb4e02f1972ef8b63ffabbe48111abbd9fef4212e02619035adfa19ed0e8f9f5d0f78017
• Download URL:
  https://stacks.cdc.gov/view/cdc/210480/cdc_210480_DS1.pdf
• File Type:
  [PDF - 398.88 KB ]