Particle release from respirators, part II: determination of the effect of tension applied in simulation of removal

Details

• Personal Author:
  Birkner JS ; Fung D ; Hinds WC ; Kennedy NJ ; Kovalchik S
• Description:
  This study evaluated the potential for disposable filtering facepiece respirators (hereafter termed masks) contaminated with 1-µ m particles to release particles as a result of lateral tension applied to the mask. The lateral tension was designed to simulate the removal of a contaminated mask from a user's head. Four brands of filtering facepieces were loaded with approximately 20 million 1.0-µ m polystyrene latex (PSL) microspheres. The respirators were then placed in a test chamber and subjected to lateral tension between 17.8-26.7 N (4-6 lbs) for 1 to 2 sec. The findings suggest that neither mask type nor loading condition affects particle release. This supports our hypothesis that when filtering facepiece respirators are properly removed from the head they will not release a significant number of particles. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Occupational Health Particulate Matter Personal Protective Equipment Respiratory Protective Devices Respiratory System Safety
• Keywords:
  Airborne Particles Author Keywords: Particles Exposure Assessment Face Masks Filter Materials Filters Particle Aerodynamics Particulates Personal Protective Equipment PPE Release Removal Respirator Respirators Respiratory Equipment Stretch

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• ISSN:
  1545-9624
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  10-12
• Volume:
  8
• Issue:
  1
• NIOSHTIC Number:
  nn:20038146
• Citation:
  J Occup Environ Hyg 2011 Jan; 8(1):10-12
• Contact Point Address:
  Jeffrey S. Birkner, UCLA, Environmental Health Sciences, 56-070 CHS, Box 951772, Los Angeles, CA 90095
• Email:
  jeffbirkner@sbcglobal.net
• Federal Fiscal Year:
  2011
• Performing Organization:
  University of California Los Angeles
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:b8ab9c7c60df931eba22f9eecf1631920ca1f48e368b9a3f30febd214a6589bc3ebb05ed98da0adf87e59f2a3118060da4ca9e8da32e35755bcec5fe5d409c50
• Download URL:
  https://stacks.cdc.gov/view/cdc/191944/cdc_191944_DS1.pdf
• File Type:
  [PDF - 207.68 KB ]