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Masks are now an important line of defense to prevent respiratory infectious diseases and can reduce the risk of new coronavirus infection. KN95 and N95 have medical and non-medical masks. Next, let us look at the difference between KN95 non-medical masks and N95 non-medical masks.
KN95 is a Chinese standard mask, derived from the Chinese standard GB 2626-2006 "Self-priming filter anti-particulate respirator for respiratory protective equipment". KN95 masks are a type of masks in China that have filter efficiency for particulate matter. KN95 non-medical masks and N95 non-medical masks are actually the same in terms of particle filtration efficiency.
N95 is an American standard. The N95 mask is one of the nine particulate protective masks certified by the American Institute of Occupational Safety and Health. N95 is not a specific product name. As long as it meets the N95 standard and passes the NIOSH review, it can be called an N95 mask, which can filter particles with an aerodynamic diameter of 0.075 µm ± 0.020 µm and achieve a filtration efficiency of more than 95%. Jin Xiangyu once said: “KN95 masks and N95 masks include both medical and non-medical types. Among them, KN95/N95 masks with the “medical” mark can be used for the first-line protection of medical personnel during the anti-epidemic period. "The mask with the logo is not recommended for use by medical staff, and ordinary people can use it. A mask with level 1 or higher in accordance with GB19083 can achieve 95% filtration and prevent liquid penetration, and can be used for various operations in medical institutions. This shows However, KN95 non-medical masks and N95 non-medical masks are suitable for the general public. For medical personnel, it is recommended to use the medical category.
In summary, the protection levels of KN95 and N95 masks are equivalent, but they follow the testing standards of different countries. The KN95 mask follows the Chinese standard, and the N95 mask follows the American standard. Both of them have a protection efficiency of not less than 95% for non-oily particles (sodium chloride particles for experimental use). Seeing this, do you know the difference between KN95 non-medical masks and N95 non-medical masks?