How to tell if your face mask works as new Covid variants spread There are three things about your face covering you need to keep in mind Neil ShawNetwork Content Editor Updated The video will auto-play soon8Cancel Play now Never miss another Leicestershire story by signing up to our free email updatesInvalid EmailSomething went wrong, please try again later. Sign up When you subscribe we will use the information you provide to send you these newsletters. Sometimes they’ll include recommendations for other related newsletters or services we offer. OurPrivacy Noticeexplains more about how we use your data, and your rights. You can unsubscribe at any time.