Cited by 311Infection Control and VentilationAerosol Filtration and Electrostatic PrecipitationOccupational Health and Safety in Workplaces

Surgical mask filter and fit performance

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Oberg, Tara, Brosseau, Lisa M.·2008·American Journal of Infection Control

Abstract

Background Surgical masks have been used since the early 1900s to minimize infection of surgical wounds from wearer-generated bacteria. There is ongoing debate, however, whether surgical masks can meet the expectations of respiratory protection devices. The goal of this study was to evaluate the filter performance and facial fit of a sample of surgical masks. Methods Filter penetration was measured for at least 3 replicates of 9 surgical masks using monodisperse latex sphere aerosols (0.895, 2.0, and 3.1 microm) at 6 L/min and 0.075-microm sodium chloride particles at 84 L/min. Facial fit was measured on 20 subjects for the 5 masks with lowest particle penetration, using both qualitative and quantitative fit tests. Results Masks typically used in dental settings collected particles with significantly lower efficiency than those typically used in hospital settings. All subjects failed the unassisted qualitative fit test on the first exercise (normal breathing). Eighteen subjects failed the assisted qualitative fit tests; 60% failed on the first exercise. Quantitative fit factors ranged from 2.5 to 9.6. Conclusion None of these surgical masks exhibited adequate filter performance and facial fit characteristics to be considered respiratory protection devices.

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Crossref · 10.1016/j.ajic.2007.07.008

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  1. [10]Respiratory protective devices; final rules and notice, 42 CFR part 84. 1995;60:30335-98.
  2. [11]Respiratory protection, 29 CFR §1910.134. 1998;63:1151-1200.

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Authors
Oberg, T., & Brosseau, L. M.
Affiliations
University of Minnesota (US)
Venue
American Journal of Infection Control
Publisher
Elsevier BV
Published
2008-05
Volume
36
Issue
4
Pages
276-282
ISSN
0196-6553 (ISSN-L)
OpenAlex
W2051689964
Cited by
310
References
29
Citations by year
2026: 2 · 2025: 10 · 2024: 16 · 2023: 24 · 2022: 32 · 2021: 81 · 2020: 62 · 2019: 7 · 2018: 5 · 2017: 7 · 2016: 7 · 2015: 6 · 2014: 8 · 2013: 11 · 2012: 6
FWCI
7.68
Type
journal article
Language
en
Open access
Locations
  • American Journal of Infection Control (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute for Occupational Safety and Health (T42/OH008434, 1t42oh008434-01)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Infection Control and Ventilation
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Aerosol Filtration and Electrostatic Precipitation
  • Health Sciences › Health Professions › Occupational Therapy › Occupational Health and Safety in Workplaces
Keywords
surgical masks, filtration efficiency, respiratory protection, particle penetration, dental masks, aerosol filtration, surgical site infection
MeSH terms
Equipment Failure, Female, Humans, Male, Masks, National Institute for Occupational Safety and Health, U.S., Respiratory Protective Devices, United States, United States Occupational Safety and Health Administration, Infection Control, Infectious Disease Transmission, Patient-to-Professional, Equipment Failure Analysis, Particulate Matter

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