How your mask protects other people – video explainer

Since the beginning of the coronavirus pandemic, many countries have brought in rules, and even laws, requiring people to wear face masks to help contain the spread of the virus. But as restrictions are being lifted globally, many governments are loosening the rules around mandatory face coverings.

With the requirements due to be dropped in England on 19 July, the Guardian's science correspondent Natalie Grover looks at why masks are more about protecting others than ourselves, and where we still might want to wear them

• What kind of face mask best protects against coronavirus?
• Chris Whitty suggests guidelines for use of masks after 19 July