This posters showing group of workers using face masks for covid19 including policeman, security guard and food delivery person. Text on the left up side of the poster "Zhi jing zhan yi ying xiong" Text on the middle of the poster "Zhi'an `an quan bao wei' wai mai `wu jie chu pei song'." Text on the bottom of the poster "Nimen xin ku le! `Lao dong guan grong gan'en you ni'`Zhongguo jia you. Shi jie jia you' shao chu men / dai kou zhao / bu ju ji / duo tong feng / qin xi shou."