Novel mask

• Main Authors: LIU SHUIJIAO, ZHANG WEIFENG, CHEN YA, XU WEIFANG, YANG SUQING
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• Subjects: ACCESSORIES; HUMAN NECESSITIES; OUTERWEAR; PROTECTIVE GARMENTS; WEARING APPAREL

The utility model discloses a novel mouth mask which comprises an upper mouth mask part, a lower mouth mask part, a first connecting piece, a second connecting piece, a first sliding buckle and a second sliding buckle, the two sides of the upper mouth mask part are fixedly installed on the upper por...