Few products have risen from relative obscurity to ubiquity as quickly as face masks, Joseph Flaig, writing for the Institution of Mechanical Engineers at IMechE.org, observes. As the airborne threat of Covid-19 gradually became clear, many of us went from mask-free to wearing disposable or homemade masks, before settling on washable, reusable products. Now, however, even…
‘Smart’ face masks offer built-in assistants and customisable LED lighting
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