What is a medical-grade face mask? Scottish Government is considering rule change on face coverings

Scots could soon be ordered to wear medical grade face coverings in a bid to tackle new mutant strains of coronavirus.

Deputy First Minister John Swinney revealed that the Scottish Government have been ‘actively exploring’ the measure.

Germany has already made it compulsory for people to wear a 'filtering face piece' (FFP) mask on public transport and in shops.

France is also said to be considering something similar.

Face masks have become a common feature in Scotland during much of the pandemic (Getty Images)

Mr Swinney said earlier this week: “We’ve got to make sure we take the most effective measure to suppress the virus and be advised about the clinical value or particular steps to take.

“The question about the higher grade face covering is one that is being actively explored within government today.”

What is a ‘medical grade’ face mask?

The World Health Organisation (WHO) describes a medical mask as “surgical or procedure masks that are flat or pleated.”

It adds: “They are affixed to the head with straps that go around the ears head or both.”

Medical masks must be able to filter at least 95% of droplets, ensure unhindered breathing and be made up of three laters of synthetic nonwoven materials.

The WHO says: “Medical masks are rectangular in shape and comprise of three or four layers. Each layer consists of fine to very fine fibres. These masks are tested for their ability to block droplets.

“The masks must block droplets and particles while at the same time they must also be breathable by allowing air to pass. Medical masks are regulated medical devices and categorised as PPE.”

However, experts have raised concerns over the use of medical masks in the community, as it could ‘divert them from health workers and others who need them most’.

It is now compulsory for people in Germany to wear FFP masks in shops and on public transport (Photothek via Getty Images)

Guidance from WHO adds: “In settings where medical masks are in short supply, medical masks should be reserved for health workers and at-risk individuals when indicated.”

Masks should not been seen as your only line of defence in the fight against coroanvirus - other measures such as social distancing, avoiding crowds and washing your hands should still be carried out.