Collection efficiency of respirator filters challenged with monodisperse latex aerosols

Details

• Personal Author:
  Brosseau LM ; Effenbecker MJ ; Evans JS ; Feldstein ML
• Description:
  The results of experiments in which the size specific performance of ten manufacturers' electrostatically charged dust/mist filters was determined using monodisperse latex spheres ranging from 0.1 to 2.0 micrometers in diameter were presented. These experiments were designed to provide data needed in the empirical modeling effort and to assist in selecting a subset of filters for use in subsequent experiments. Minimum efficiency occurred at or below the smallest size of 0.102 micrometers. Appreciable differences were found in the performance of filters distributed by the ten manufacturers. Filters produced by one manufacturer exhibited significantly lower collection efficiencies than other filters tested. Those produced by two of the manufacturers performed somewhat better than the others tested. Statistical analysis of Weibull transformed data using analyses of covariance and Tukey's significant different test allowed classification of the ten manufacturers into three performance categories. The strong dependence demonstrated by electrostatic filter efficiency on particle size, the variability of industrial aerosol size distributions and the recognition that lung dose depends on particle size as well as on mass concentration suggests that information about fractional penetration over a range of sizes would allow users to select filters appropriate for their particular operation. [Description provided by NIOSH]
• Subjects:
  Environmental Monitoring Filtration Occupational Health Personal Protective Equipment Respiratory Protective Devices Safety
• Keywords:
  Air-quality-control Air-quality-monitoring Air-sampling-equipment NIOSH-Grant NIOSH-Publication Personal-protective-equipment Respirators Respiratory-protective-equipment Safety-research
• ISSN:
  0002-8894
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Massachusetts ; OSHA Region 1
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  50
• Issue:
  10
• NIOSHTIC Number:
  nn:00191558
• Citation:
  Am Ind Hyg Assoc J 1989 Oct; 50(10):544-549
• Contact Point Address:
  Environmental Sci & Physiology Harvard School of Public Hlth 665 Huntington Avenue Boston, MA 02115
• Federal Fiscal Year:
  1990
• NORA Priority Area:
  Respirator Research
• Performing Organization:
  Harvard University, Boston, Massachusetts
• Peer Reviewed:
  True
• Start Date:
  19860101
• Source Full Name:
  American Industrial Hygiene Association Journal
• End Date:
  19881231
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6ea45bdf01283e6eff94906c559e014e51258c8b38ebc2166eff25cadc57213fa83376e993b4be5404ffc6404e9e5e698be3f8cd4349fc7ff2b57826c6a0e6a3
• Download URL:
  https://stacks.cdc.gov/view/cdc/204354/cdc_204354_DS1.pdf
• File Type:
  [PDF - 477.43 KB ]