From the BBC:

Welsh inventors have been among those working on new designs to try to help prevent the spread of the virus.

Mass production has begun of a snood-type mask, which designers say can kill this coronavirus - potentially helping protect frontline workers and the vulnerable.

The company behind it hopes to make as many as a million-a-week and plans to reserve part of that stock for the NHS.

"We have been working on the anti-viral coating since 2011 but it's only in the last five weeks that we have developed the snood in response to the current pandemic," said Anna Roberts, of Virustatic Shield.

Meanwhile, a new ventilator, which took just three days to design, has already successfully treated a Covid-19 patient- and has been backed by the Welsh Government.