Physical and biological aerosol penetration and face-seal leak characteristics of industrial and health-care respirators

Details

• Personal Author:
  Donnelly J ; Grinshpun S ; Juozaitis A ; Quian Y ; Ulevicius V ; Willeke K
• Description:
  Research comparing the ability of surgical masks and industrial dust/mist respirators to protect against submicrometer sized aerosol particles and bacteria was summarized. Filter penetration varied from 20% to 100% for surgical masks and was less for industrial respirators. Face seal leaks produced higher mask aerosol penetration in industrial masks due to the higher pressure drop across the mask. Surgical mask protection was less affected by face seal leaks. New respirator testing methods were cited which differentiate air flow from face seal links and air flow through filters. Spherically shaped test particles gave lower measurements of aerosol penetration than tests using challenge bacteria. The authors conclude that surgical masks provide insufficient protection from submicrometer size aerosols encountered in hospital environments. [Description provided by NIOSH]
• Subjects:
  Aerosols Hazardous Substances Health Personnel Occupational Exposure Occupational Health Personal Protective Equipment Respiratory Protective Devices Safety
• Keywords:
  Aerosol-particles Biohazards Health-care-personnel Mechanical-tests NIOSH-Grant NIOSH-Publication Occupational-exposure Personal-protective-equipment Respirators Respiratory-protective-equipment
• ISSN:
  0021-8502
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  25
• Issue:
  1
• NIOSHTIC Number:
  nn:00233092
• Citation:
  J Aerosol Sci 1994 Jan; 25(1)(Suppl):S569-S570
• Contact Point Address:
  Environmental Health University of Cincinnati 3223 Eden Avenue Cincinnati, OH 45267-0056
• Federal Fiscal Year:
  1994
• Performing Organization:
  University of Cincinnati, Cincinnati, Ohio
• Peer Reviewed:
  True
• Start Date:
  19920901
• Source Full Name:
  Journal of Aerosol Science
• Supplement:
  Suppl
• End Date:
  19950831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:98252196d2aee7c72af880f8f2e0e9bb7b7eb35023c2aee4c68e25aeb1789120942c0b908e07365da4c929f74288531299fb02f51c2a16d92f5c2988c020a4c9
• Download URL:
  https://stacks.cdc.gov/view/cdc/205365/cdc_205365_DS1.pdf
• File Type:
  [PDF - 119.60 KB ]