Ask the name of the hat in the costume drama ~

This is a kind of hat, which is often used as a prop in martial arts movies to cover your face. In China and Guizhou, there are white gauze. Besides China, South Korea and Viet Nam also have them, but their meanings are different.

China asked Tian Daya to pay tribute to the emperor in the 14th year of Hongwu in Ming Dynasty. When the emperor saw it, he couldn't put it down and exclaimed, "It's as thin as silk and beautiful! Beautiful! " He tore off a piece of green gauze, gave it to Tian Daya, put it on the top of his hat, and said, "People can wear it, so can officials." Then it became popular.