COVID-19: mask efficacy is dependent on both fabric and fit.

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.

journal_name

Future Microbiol

journal_title

Future microbiology

authors

Darby S,Chulliyallipalil K,Przyjalgowski M,McGowan P,Jeffers S,Giltinan A,Lewis L,Smith N,Sleator RD

doi

10.2217/fmb-2020-0292

subject

Has Abstract

pub_date

2021-01-01 00:00:00

pages

5-11

eissn

1746-0913

issn

1746-0921

journal_volume

16

pub_type

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