English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

At the front lines of the world's response to the COVID-19 pandemic arehero-clinicians facing a lack of critical supplies including protective medicalgrade breathing masks and filtering materials. At the same time, the generalpublic is now being advised to wear masks to help stop the spread. As a result,in the absence of centrally coordinated production and distribution efforts,supply chains for masks, respirators, and materials for advanced filtrationtechnology are immensely burdened. Here we describe experimental efforts tonondestructively quantify three vital characteristics of mask approaches:breathability, material filtration effectiveness, and sensitivity to fit. Wefocus on protection against water aerosols $>$0.3$\mu$m using off-the-shelfparticulate, flow, and pressure sensors, permitting rapid comparativeevaluation of these three properties. We present and discuss both the pressuredrop and the particle transmission as a function of flow to permit comparisonof relative protection for a set of proposed filter and mask designs. Thedesign considerations of the testing apparatus can be reproduced by universitylaboratories and medical facilities and used for rapid local quality control ofrespirator masks which are of uncertified origin, monitoring the long-termeffects of various disinfection schemes, and evaluating improvised products notdesigned or marketed for filtration.

An apparatus for nondestructive and rapid comparison of mask approaches in defense against infected respiratory aerosols