One of the big advantages of wearing a mask (any mask) is that it stops you touching your mouth. Most people touch their mouths dozens of times a day without ev

One of the big advantages of wearing a mask (any mask) is that it stops you touching your mouth. Most people touch their mouths dozens of times a day without even thinking about it, and it's a fantastic infection vector. Person with a cold sneezes, gets rhinovirus all over their hands, touches a door handle, you touch the door handle, you bite your nails - hello cold!