Many countries around the world are either advising people to wear face masks in public or even making it mandatory.
But what is the science behind mass mask wearing?
Will it really protect you from Covid-19? Or is it something that adds a sense of security without any of the actual benefits?
In this video, we look at the debate around face mask wearing among the public – and talk to a range of voices to get to the bottom of this seemingly simple but actually rather complex topic.