Last month I explained how to do selective colouring using the History Brush and here's how to do a similar job using the more controllable Layer mask. The photo, taken at Whitby, North Yorkshire, is ...

A Government scientist has recommended wearing three layer masks to prevent the spread of Covid-19. But Public Health England's Dr Susan Hopkins said there was no need to wear two masks, as US ...

Wearing three layers of face coverings can help protect you against infection with the novel coronavirus. Public health experts say this does not mean wearing three masks at a time. Multiple masks may ...

Our first independent lab test of reusable face coverings has revealed that some cloth masks are highly effective at blocking particles, but that basic single-layer masks may not be up to the job. We ...

Researchers filmed how droplets travel out of someone's mouth when they talk, cough and sneeze and how it changes with different masks. In the video droplets were noticeable when the man talked ...