I'm writing a fanfiction about gangs and the main protagonists get caught. So I would like to use the mask that covers mouths that bad people use. But I don't know what they're called.
The masks that the cowboys in the old days used are called bandannas. A lot of the masks you see in areas of the world where there are fears of airborne germs are
3-M dust masks, they are usually white. Sometimes you see a blue version of these 3-M masks worn by surgeons during surgery. Many masks you see people wearing that cover 70% of the face with pictures on them like crazy clown teeth, bloody fangs,etc. are usually ski masks.