N95 - is the U.S. federal regulations 42 CFR Part 84 by the U.S. National Institute for Occupational Safety and Health (NIOSH) put forward the concept of including N, R, P three series, N series can be a barrier to non-oily particulate respiratory protective equipment (including) masks. (including masks), and the relevant domestic standard system is no N95 statement; In addition, N series masks can be used for protection of particulate occasions, including viruses and other pathogens spread occasions, but does not mean that all N95 masks can be used for epidemic prevention of the first line of medical protection;

Medical masks - is the highest requirements of the current domestic medical The field of the highest requirements of protective masks, technical indicators see GB 19083, can be used for high-risk, high-exposure epidemiological front-line health care workers and staff protection;

KN 95 - is the concept of the domestic labor insurance field of the most widely spread standard GB 2626, the standard respirator (including masks) is divided into KN and KP series, KN series can block non-oily particulate matter, KP series can block oily and non-oily particulate matter;

European standards for particulate matter protective masks - EN 149 in the sub-FFP1, FFP2, FFP3*** three levels, but the test parameters (test flow, aerosol particle size Characteristics, etc.) and GB 2626 and the U.S. N95 are different; and GB 2626 is not comparable for the time being, but in the epidemic period of the public's daily use of protection is sufficient;

Europe and the United States of America and the United States of America medical mask standards - the European standard EN 14683 medical masks are divided into Type Ⅰ, Type Ⅱ and Type Ⅱ R three levels, respectively, bacterial filtration efficiency, pressure difference, and the efficiency of the masks. The European standard EN 14683 for medical masks is divided into TypeⅠ, TypeⅡ and TypeⅡR three levels, respectively, bacterial filtration efficiency, pressure difference, synthetic blood penetration, microbial cleanliness, and the filtration efficiency of particles is not required; the American standard ASTM F2100 is also divided into three levels of medical masks, respectively, the assessment of bacterial filtration efficiency, pressure difference, submicron particles filtration efficiency, synthetic blood penetration, and flame retardant; because there has been no specimen comparison, it is impossible to confirm that these two standards are the same as GB 19083. And GB 19083 requirements of the high and low, but from the standard text comparison analysis, China's GB 19083 is not low.

Comparative analysis of mask standards

GB 19083-2010 was developed from the 2003 SARS, when it was found that N95 masks can effectively prevent the spread of viruses, so the 2003 version of the requirements of particle filtration efficiency of ≥ 95%, and then the standard was revised to join the resistance to synthetic blood penetration, anti-staining and other properties, applicable to the transmission of pathogens, the need for protection of medical care, working environment, characterized by barrier protection, and the need for protection. Working environment, characterized by barrier protection, strong fit, mainly used for epidemic front-line health care, staff, not recommended for the elderly, children and frail adults to wear;

GB 19083-2010 was developed from the 2003 SARS, when it was found that N95 masks can effectively prevent the spread of viruses, so its 2003 version requires particle filtration efficiency of ≥ 95%, the subsequent revision of the standard to include anti-synthetic blood penetration, anti-water and other properties, applicable to the strong transmission of pathogens, extremely need for protection of medical care. Subsequent revisions to the standard to join the anti-synthetic blood penetration, anti-staining and other properties, applicable to the strong transmission of pathogens, the need for protection of the medical work environment, characterized by barrier protection, tightness, mainly used for the epidemic front-line health care, staff, do not recommend that the elderly, children and frail healthy adults to wear;

YYY/T 0969-2013 is applicable to wear in the general medical environment, is the daily Pharmacy can see the most masks, the same applies to the epidemic period people wear protection;

GB 2626-2006 is the safety supervision and labor protection field for the protection of all kinds of particulate matter inhalation of workplace masks, in which the KN95 and the U.S. federal regulations 42 CFR Part 84 in the N95 test methods and requirements are similar, and therefore can play a better role in blocking the protective effect of the 2019 version will be implemented in the second half of 2020;

GB/T 32610-2016 is a prominent haze situation in recent years, for the people's daily life protection of masks worn by the standard, the main project is the filtration efficiency and protection effect, both at the same time to assess the saline and oily aerosols, and its filtering materials and tightness of the requirements of the higher, the same applies to the epidemic of severe periods of personal protection.