How to stop your glasses steaming up – and 19 other essential facts about face masks

How to stop your glasses steaming up – and 19 other essential facts about face masks

Lifestyle | The Guardian     •     July 9, 2020, 5:00 am

How often should you wash a cloth mask? And how effective are the disposable ones? The expert guide to choosing, wearing and caring for your face coveringThe British have been slow to embrace face…

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