Filtration Efficiency of Selected HVAC Filters

Details

• Personal Author:
  Commodore M ; Fotta, Steven ; Hayes J ; Moyer E
• Description:
  Air quality begins with good engineering controls in the air handling system (HVAC system). For particulate matter this involves having an air handler containing filters which remove the majority of particulate matter from the incoming ambient air. The National Institute for Occupational Safety and Health (NIOSH) has conducted a study of various bag filters used in its air handler to determine the micrometer particles (0.03-0.4 micrometers) because this is the most penetrating size range for these filters. Experimental aerosol penetration data shows that an extremely large range of filter efficiency exists. Aerosol penetration through new filters ranged from less than one percent to greater than ten percent were observed. The values depend on flow rate, surface area of the media, challenge agent particle size, and challenge agent state (liquid or solid). Filters which were removed from the filter bank were also tested to determine the effect of routine inlet air exposure. [Description provided by NIOSH]
• Subjects:
  Aerosols Engineering Filtration Occupational Health Particulate Matter Safety
• Keywords:
  Air-quality-control Engineering-controls Exposure-levels Filters Particulates
• Publisher:
  American Industrial Hygiene Association
• Document Type:
  Text
• Genre:
  Abstract or Summary
• Place as Subject:
  California ; OSHA Region 3 ; OSHA Region 9 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRDS - Division of Respiratory Disease Studies ; OD - Office of the Director
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  25
• NIOSHTIC Number:
  nn:20022375
• Citation:
  American Industrial Hygiene Conference and Exposition, June 1-6, 2002, San Diego, California. Fairfax, VA: American Industrial Hygiene Association, 2002 Jun; :25
• Federal Fiscal Year:
  2002
• NORA Priority Area:
  Research Tools and Approaches: Control Technology and Personal Protective Equipment
• Peer Reviewed:
  False
• Source Full Name:
  American Industrial Hygiene Conference and Exposition, June 1-6, 2002, San Diego, California
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:88dae00f9f63dbfbdc74e7003899dae4a2af6f65ecce5da57de0d5994adc90ce13c31814777e7ac5302bf0177536bbe2bc409c6ddffcdf7073755be72adbe58d
• Download URL:
  https://stacks.cdc.gov/view/cdc/199174/cdc_199174_DS1.pdf
• File Type:
  [PDF - 500.09 KB ]