Earlier this week, the government changed their stance on wearing face coverings during the coronavirus pandemic in the UK.
Until this point they had said there was no need for the general public to wear them when out and about.
But as of Wednesday (May 12) this is no longer the case.
The new advice is that people should "consider wearing face coverings in enclosed public spaces where you may be more likely to come into contact with people you do not normally meet".
According to the experts, enclosed public spaces include public transport such as buses and trains, as well shops.
So if you can wear a face covering, you should try and wear one in these places to help limit the spread of the virus.
However there are a few cases in which people are unable to wear face coverings.
A post on gov.uk explains: "They do not need to be worn outdoors, while exercising, in schools, in workplaces such as offices and retail, by those who may find them difficult to wear, such as children under two or primary aged children who cannot use them without assistance, or those who may have problems breathing while wearing a face covering."
The advice to wear them was issued after careful consideration of the latest scientific evidence from the Scientific Advisory Group for Emergencies (SAGE).
As per the evidence, the government confirmed face coverings can help reduce the risk of transmission in some circumstances.
"Face coverings can help us protect each other and reduce the spread of the disease if you are suffering from coronavirus but not showing symptoms. People with coronavirus symptoms, as well as members of their household, should continue to follow the advice to self-isolate," the government's announcement reads.
"They may be beneficial in places where it is hard to follow and maintain social distancing measures. This applies when using public transport, such as trains, buses and metro systems, or when visiting shops."
They added: "The public is being strongly urged not to purchase surgical masks or respirators. These are prioritised for healthcare workers working in more high-risk environments where the risk is greatest.
"Instead the public is encouraged to make face coverings at home, using scarves or other textile items that many will already own."
You can learn how to make your own face covering at home here.
