After his wife visited a hospital during the COVID-19 pandemic, Welsh inventor Wyn Griffiths came up with the idea of a touch-free door handle which could be opened using an arm to minimise the risk of infection from touching door handles.

By that same evening, he’d already come up with a prototype. The 3D designs for the “arm”, which can be attached to an existing door, have been distributed online and can be downloaded and printed by anyone with a 3D printer.

Liked this? Click the Like button above. And click the Follow button above for more great stories from loveMONEY

Now discover 10 inventors who made a fortune from just one product

23 of the best inventions that Britain gave to the world