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COVID-19: mask efficacy is dependent on both fabric and fit.
Darby, Steven; Chulliyallipalil, Krishnakumar; Przyjalgowski, Milosz; McGowan, Paddy; Jeffers, Simon; Giltinan, Alan; Lewis, Liam; Smith, Niall; Sleator, Roy D.
  • Darby S; The Centre for Advanced Photonics & Process Analysis, Cork Institute of Technology, Bishopstown, Cork, Ireland.
  • Chulliyallipalil K; The Centre for Advanced Photonics & Process Analysis, Cork Institute of Technology, Bishopstown, Cork, Ireland.
  • Przyjalgowski M; The Centre for Advanced Photonics & Process Analysis, Cork Institute of Technology, Bishopstown, Cork, Ireland.
  • McGowan P; Mechanical Energy System Simulation Optimisation Group, Cork Institute of Technology, Bishopstown, Cork, Ireland.
  • Jeffers S; Blackrock Castle Observatory, Cork Institute of Technology, Bishopstown, Cork, Ireland.
  • Giltinan A; Blackrock Castle Observatory, Cork Institute of Technology, Bishopstown, Cork, Ireland.
  • Lewis L; The Centre for Advanced Photonics & Process Analysis, Cork Institute of Technology, Bishopstown, Cork, Ireland.
  • Smith N; Blackrock Castle Observatory, Cork Institute of Technology, Bishopstown, Cork, Ireland.
  • Sleator RD; Department of Biological Sciences, Cork Institute of Technology, Bishopstown, Cork, Ireland.
Future Microbiol ; 16: 5-11, 2021 01.
Article in English | MEDLINE | ID: covidwho-993128
ABSTRACT

Aim:

Face masks are an important addition to our arsenal in the fight against COVID-19. The aim of this study is to present a novel method of measuring mask performance which can simultaneously assess both fabric penetration and leakage due to poor fit. Materials &

methods:

A synthetic aerosol is introduced into the lung of a medical dummy. A conical laser sheet surrounds the face of the dummy where it illuminates the aerosol emitted during a simulated breath. The system is demonstrated with five mask types.

Conclusions:

The curved laser sheet highlights both penetration through the mask fabric and leakage around the edges of the mask. A large variation in both material penetration and leakage was observed.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Textiles / COVID-19 / Masks Limits: Humans Language: English Journal: Future Microbiol Journal subject: Microbiology Year: 2021 Document Type: Article Affiliation country: Fmb-2020-0292

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Textiles / COVID-19 / Masks Limits: Humans Language: English Journal: Future Microbiol Journal subject: Microbiology Year: 2021 Document Type: Article Affiliation country: Fmb-2020-0292