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{"id":56367,"date":"2020-07-13T18:21:04","date_gmt":"2020-07-13T18:21:04","guid":{"rendered":"https:\/\/virusreports.net\/which-homemade-masks-are-most-effective\/"},"modified":"2020-07-13T18:21:04","modified_gmt":"2020-07-13T18:21:04","slug":"which-homemade-masks-are-most-effective","status":"publish","type":"post","link":"http:\/\/virusreports.net\/which-homemade-masks-are-most-effective\/","title":{"rendered":"Which homemade masks are most effective?"},"content":{"rendered":"
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A new study investigates how effective face masks of different designs are at inhibiting the transfer of airborne droplets from coughs and sneezes.<\/p>\n

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<\/source><\/source><\/source>\"Young<\/img><\/picture><\/span>Share on Pinterest<\/span><\/a><\/hl-share-overlay><\/span>
New research assesses the effectiveness of various types of homemade masks. <\/figcaption><\/figure>\n<\/div>\n

Due to the scarcity and cost of medical-grade face masks, many people are using homemade masks to avoid spreading or contracting SARS-CoV-2, the virus that causes COVID-19.<\/p>\n

There has been relatively little official guidance about which mask designs provide the strongest barriers to infection, leading amateur mask-makers to improvise.<\/p>\n

Now, a new study has used laser visualization experiments to demonstrate the effectiveness of homemade masks of various designs.<\/p>\n

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Stay informed with live updates<\/a> on the current COVID-19 outbreak and visit our coronavirus hub<\/a> for more advice on prevention and treatment.<\/em><\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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For the best protection against the new coronavirus, a mask should be well-fitting and contain multiple layers of quilted fabric.<\/strong><\/p>\n

These masks are roughly as good at preventing the spread of infection as commercially produced cone-shaped masks, researchers from Florida Atlantic University (FAU), in Boca Raton, report in a Physics of Fluids<\/a><\/em> study paper.<\/p>\n

Lead author Siddhartha Verma, an assistant professor at FAU, notes, \u201cWhile there are a few prior studies on the effectiveness of medical-grade equipment, we don\u2019t have a lot of information about the cloth-based coverings that are most accessible to us at present.\u201d <\/p>\n

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\u201cOur hope is that the visualizations presented in the paper help convey the rationale behind the recommendations for social distancing and using face masks.\u201d <\/p>\n

\u2013 Prof. Siddhartha Verma<\/p>\n<\/blockquote>\n<\/div>\n

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The researchers used a laser sheet setup, which is commonly employed to study liquid mechanics, to observe the behavior of airborne respiratory droplets that could, outside the lab, contain SARS-CoV-2.<\/p>\n

As these droplets were \u201ccoughed\u201d and \u201csneezed\u201d from the head of a mannequin, the researchers mapped their trajectory.<\/p>\n

\u201cThe main challenge is to represent a cough and sneeze faithfully,\u201d says Prof. Verma. \u201c[For] the setup, we have used a simplified cough, which in reality is complex and dynamic.\u201d<\/p>\n

Prof. Verma compares visualizing the airborne droplets to observing dust particles in a beam of sunlight.<\/strong><\/p>\n

The researcher acknowledges that while further quantitative analysis is warranted to confirm his team\u2019s observations, the visualization technique was nonetheless instructive.<\/p>\n

Still, it is important to note that SARS-CoV-2 may become aerosolized<\/a> into fine airborne particles and that the present study did not document the behavior of such particles.<\/p>\n<\/div>\n

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At the outset, Prof. Verma says, it is \u201cimportant to understand that face coverings are not 100% effective in blocking respiratory pathogens.\u201d<\/p>\n

\u201cThis is why it is imperative that we use a combination of social distancing, face coverings, hand washing, and other recommendations from healthcare officials until an effective vaccine is released.\u201d<\/strong><\/p>\n

Nonetheless, the researchers established that:<\/p>\n