Coronavirus: which way round to wear a face mask?
Wearing a face covering or homemade face mask is now mandatory in many places such as on public transport.
This is to reduce the chances of coronavirus being spread.
But if you wear your face covering incorrectly, you could actually be putting yourself more at risk.
Here the BBC's Health Correspondent Laura Foster and Tobias Chapple explain how to wear your homemade mask correctly.
Video by: Tobias Chapple, Laura Foster, Terry Saunders