Because according to the report of Hunan Kangzhijian Technology Co., Ltd., Hunan Kangzhijian Technology Co., Ltd. voluntarily recalled its medical surgical masks (sterile) because the microbial indicators of medical surgical masks were not up to standard, so Hunan Kangzhijian sterile masks were fake. The specific information is subject to the information released by official website.
Changsha, the capital of Hunan Province, is a provincial administrative region of People's Republic of China (PRC).