Give mask rebels their own space

I was appalled to see so many people flouting the mandatory requirement to wear a face mask while travelling on the London Underground. The solution to me is quite simple: carriages could be labelled ‘mask’ and ‘non-mask’. Those people who want to expose themselves and others to the risk of contracting Covid could be quite happily lumped together in the ‘non-mask’ carriages, leaving the rest of us to enjoy a less risky environment.

Dr Laurence Knott, Barnet