Lockdown has forced professor Mike Bradley to work out of his back garden shed. But he's determined to bring his air-fed hood into production. And he says it could help a range of people to work more safely - from doctors and nurses to bus drivers. See if you get the FT for free as a student (http://ft.com/schoolsarefree) or start a £1 trial: https://subs.ft.com/spa3_trial?segmentId=3d4ba81b-96bb-cef0-9ece-29efd6ef2132

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