KN95是中国标准的口罩，来源于中国国家标准GB 2626-2006《呼吸防护用品自吸过滤式防颗粒物呼吸器》。本标准是中国强制性国家标准，由国家安全生产监督管理局提出，由全国个体防护装备标准化技术委员会（SAC/TC 112）归口。我司提供的KN95已通过国家最新要求GB2626-2019《呼吸防护用品自吸过滤式防颗粒物呼吸器》的检测。
Kn95 is a Chinese standard respirator, which comes from the Chinese national standard GB 2626-2006 respiratory protective articles self-priming filter anti particulate respirator. This standard is a mandatory national standard in China, proposed by the State Administration of work safety and under the jurisdiction of the National Technical Committee for standardization of personal protective equipment (SAC / TC 112). Kn95 provided by our company has passed the latest national requirements gb2626-2019 respiratory protective articles self-priming filter anti particulate respirator.
The new standard GB 2626-2019 respiratory protection self-priming filter respirator against particulate matter has been released to the whole society by the State Administration of market supervision on December 31, 2019 in the announcement of the National Standard No. 17 of the people's Republic of China in 2019, and will be officially implemented on July 1, 2020. The new standard is proposed and centralized by the emergency management department.
At present, the text of the new standard has been published and made public to the whole society as a mandatory standard free of charge. The new standard supplements seven terms such as "aerodynamic particle size" and modifies some technical requirements and detection methods, but does not modify the classification, marking and filtration efficiency listed in this paper.
The U.S. Centers for Disease Control (CDC) said that kn95 mask has the same effectiveness as N95 and is one of the "suitable alternatives".