The single-sheet, MIT face shield, design
includes a protective foam strip for the forehead, and two smaller foam strips, used to secure two strop-bent elastics, on each side of the headband. The elastics are ouchless (hair-band type).
The assembly, consisting of bending and folding the polycarbonate plastic sheet, strop-bending the elastics, and securing them to the headband with foam pieces, takes less than 60 seconds. The side of the polycarbonate sheet, without a peel-off protective film, has an anti-fog coating. The MIT face shield includes forehead and chin flaps designed to provide 40% more protection than typical disposable face shields. The sides of the shield are also articulate to enable the use of non-wireless stethoscopes.
The first, 100,000, face shields were donated to hospitals, emergency medical management facilities, and emergency care services, in Boston, MA.
Below, drawings of the flat sheet and assembled MIT face shield, extracted from the Technical specifications, together with a Youtube video demonstration, showing how the MIT face shield is folded and assembled.
References
Gallagher, M. B. (March 31, 2020) MIT initiates mass manufacture of disposable face shields for Covid-19 response. MIT News. http://news.mit.edu/2020/face-shield-ppe-manufacture-covid-19-0331
Learn about and obtain the MIT COVID-19 face shield. https://project-manus.mit.edu/fs-health
MIT COVID 19 face Shield Folding Instructions and Technical Specifications. https://project-manus.mit.edu/wp-content/uploads/2020/05/Faceshield-Instructions_v1.14b-and-Tech-SpecsEUA-1.pdf
YouTube: Folding instructions: https://www.youtube.com/watch?v=Ydr0a7P63zY
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