Analysis of the current quality of Chinese masks

The particle size of droplets, the main transmission medium of novel coronavirus, is 0.30~0.50μm. Filtering out particles of the same size is the key to reduce the risk of novel coronavirus infection, and therefore masks have become a scarce protective material worldwide during the epidemic. Filtration efficiency as a key technical indicator of mask product protection has received attention from various countries, and many scholars have conducted comparative studies on this technical requirement and standard.

 

Quality status of non-medical masks in China

 

China's non-medical masks generally include daily protective masks, industrial dust masks and ordinary gauze masks and other categories, market supervision departments mainly take national supervision and sampling, local supervision and sampling, product quality and safety risk monitoring and recall of defective products and other regulatory methods. Combined with the regulatory results in recent years, the filtration efficiency project does not meet a high proportion of the need to draw the attention of local regulatory authorities. 2016, 2017, 2018 national supervision and sampling batches of non-medical category masks (filtration efficiency does not meet the proportion of total failure) were 60 batches (80%), 24 batches (100%), 25 batches (83%), 2019 national supervision and sampling did not Involved in mask products, the latest non-medical class masks during the 2020 epidemic special sampling results show that 96% of the unqualified products do not meet the filtration efficiency project; local supervision and sampling checks involving masks carried out before 2020 mainly in Shanghai, Beijing, Jiangsu Province and other regions, 2012, 2013 Shanghai for two consecutive years of local supervision and sampling of dust masks products, respectively, there are 2 batches, 1 batches of unqualified products, filtration efficiency are not met, 2015 Shanghai mask product quality and safety risk monitoring 58 batches of unqualified products in 96.6% of the filtration efficiency is not met, 2016 Jiangsu Province mask product risk monitoring 99 batches of unqualified products in the filtration efficiency are not met, 2019 Beijing mask product local sampling inspection 19 batches of unqualified products in 52.6% of the filtration Efficiency project does not meet;, September 2019 ~ June 2020, a total of 18 domestic recalls of non-medical class masks, the origin involves Anhui Province, Jiangsu Province, Fujian Province and Chongqing Municipality, of which 15 batches of filtration efficiency does not meet, accounting for 83.3% of the total number of recalls.

Quality status of medical class masks

 

China's medical class masks belong to medical devices, generally including single-use medical masks, medical surgical masks, medical protective masks, mainly by the food and drug regulatory departments to carry out the national medical device supervision and sampling program responsible for inspection. According to the food and drug regulatory departments issued by the national medical device supervision and sampling results, single-use medical masks do not meet the highest proportion of filtration efficiency, while the number of other medical masks supervision and sampling is low. 2018 sampling 6 enterprises 6 batches of single-use medical masks are unqualified, 33.3% of bacteria filtration efficiency does not meet; 2019 sampling 20 enterprises 23 batches of single-use medical Masks are unqualified, 56.5% bacterial filtration efficiency does not meet; 2018 sampling 8 enterprises 8 batches of medical surgical masks are unqualified, 12.5% bacterial filtration efficiency does not meet; 2019 sampling 10 batches of medical masks are unqualified, not involving bacterial filtration efficiency project.

 

Summary: the quality of the current situation of Chinese masks for you to share here, after reading this article you should have a basic understanding and understanding believe that we all understand it! Overall, I hope it will be helpful to you.