面罩

mask / visor / facepiece (e.g. diving suit, gas mask)

face / side / surface / aspect / top / classifier for objects with flat surfaces such as drums, mirrors, flags etc

variant of 麵|面[mian4]

flour / noodles / (of food) soft (not crunchy) / (slang) (of a person) ineffectual / spineless

cover / fish trap (basket) / shade

gas mask