About: Face Coverings, Aerosol Dispersion and Mitigation of Virus Transmission Risk

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About: Face Coverings, Aerosol Dispersion and Mitigation of Virus Transmission Risk Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Face Coverings, Aerosol Dispersion and Mitigation of Virus Transmission Risk
Creator	Dunn, K Digard, P Mcdougall, C Thompson, G Akhtar, H Cummins, C Denison, F Dunn, M Gabl, R Lo, T Malik, O Mangano, E Mehendale, F Menoloascina, F Molinari, E Nila, A Pavar, G Peterson, B Pisetta, G Viola, I
source	ArXiv
abstract	The SARS-CoV-2 virus is primarily transmitted through virus-laden fluid particles ejected from the mouth of infected people. In some countries, the public has been asked to use face covers to mitigate the risk of virus transmission - yet, their outward effectiveness is not ascertained. We used a Background Oriented Schlieren technique to investigate the air flow ejected by a person while quietly and heavily breathing, while coughing, and with different face covers. We found that all face covers without an outlet valve reduce the front flow through jet by more than 90 per cent. For the FFP1 and FFP2 masks without exhalation valve, the front throughflow does not extend beyond one half and one quarter of a metre, respectively. Surgical and hand-made masks, and face shields, generate several leakage jets, including intense backward and downwards jets that may present major hazards. We also simulated an aerosol generating procedure (extubation) and we showed that this is a major hazard for clinicians. These results can aid policy makers to make informed decisions and PPE developers to improve their product effectiveness by design.
has issue date	2020-05-19(xsd:dateTime)
has license	arxiv
sha1sum (hex)	c617cc72b4c9b85b426a07c5004c15910f4a2cb0
resource representing a document's title	Face Coverings, Aerosol Dispersion and Mitigation of Virus Transmission Risk
resource representing a document's body	covid:c617cc72b4c9b85b426a07c5004c15910f4a2cb0#body_text
is schema:about of	named entity 'generate' named entity 'transmitted' named entity 'covers' named entity 'reduce' named entity 'exhalation' named entity 'face' named entity 'improve' named entity 'effectiveness' named entity 'face' named entity 'ejected' named entity 'exhalation' named entity 'FFP2' named entity 'face shields' named entity 'extubation' named entity 'virus transmission' named entity 'FFP3' named entity 'surgical mask' named entity 'cough' named entity 'FVC' named entity 'viruses' named entity 'crownward' named entity 'BOS' named entity 'intensive care' named entity 'FFP2' named entity 'face shield' named entity 'spirometry' named entity 'infectious dose' named entity 'synthetic schlieren' named entity 'SARS-CoV-2' named entity 'aerosol' named entity 'N95 masks' named entity 'inoculation' named entity 'dermatomes' named entity 'cough' named entity 'face shield' named entity 'extubation' named entity 'spirometry' named entity 'intubation' named entity 'quiet breathing' named entity 'cough' named entity 'infection' named entity 'ac.uk' named entity 'schlieren' named entity 'SARS-CoV-2 virus' named entity 'respirator' named entity 'cough' named entity 'pathogens' named entity 'sneezing' named entity 'extubation' named entity 'surgical masks' named entity 'cough' named entity 'extubation' named entity '90 nm' named entity 'velocity' named entity 'inhalation' named entity 'Shakya' named entity 'PPE' named entity 'virus' named entity 'CDC' named entity 'surgical masks' named entity 'aerosol' named entity 'diffusion' named entity 'medical simulation' named entity 'half-life' named entity 'W. F. Wells' named entity 'COVID-19' named entity 'FFP2' named entity 'aerosol'

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