Performance evaluation of filtering facepiece respirators using virus aerosols

Physical penetration and infectivity penetration of adenovirus and influenza virus aerosols through respirators were measured to better characterize the effectiveness of filtering facepiece respirators against airborne virus. A physical penetration of 2%-5% was found. However, large sample-to-sample...

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Bibliographic Details
Published in:American journal of infection control 2013, Vol.41 (1), p.80-82
Main Authors: Zuo, Zhili, BSE, Kuehn, Thomas H., PhD, Pui, David Y.H., PhD
Format: Article
Language:English
Subjects:
Adenoviridae - isolation & purification
Adenovirus
Adenoviruses
Aerosols
Air Microbiology
Airborne virus
Biological and medical sciences
Epidemiology. Vaccinations
Filters
Filtration
Filtration - methods
General aspects
Human viral diseases
Humans
Infection Control
Infection Control - methods
Infectious Disease
Infectious diseases
Influenza
Influenza virus
Life support systems
Medical sciences
Microbial Viability
Orthomyxoviridae - isolation & purification
Penetration
Performance evaluation
Respiratory Protective Devices
Viral diseases
Viral diseases of the respiratory system and ent viral diseases
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Summary:Physical penetration and infectivity penetration of adenovirus and influenza virus aerosols through respirators were measured to better characterize the effectiveness of filtering facepiece respirators against airborne virus. A physical penetration of 2%-5% was found. However, large sample-to-sample variation made it difficult to quantify the difference in physical penetration caused by the different virus aerosols. Infectivity penetration of adenovirus was much lower than physical penetration, indicating that the latter provides a conservative estimate for respirator performance.
ISSN:0196-6553
1527-3296
DOI:10.1016/j.ajic.2012.01.010