N95 and KN95 masks have the same level of protection, the difference lies in the testing standards and mask production. Both N95 and KN95 masks are protective masks, which can protect against ordinary droplets or aerosols. Both non-oil particulate filtering efficiency of not less than 95%, the same level of protection. However, N95 masks follow the U.S. regulations standard level 42CFR84 production, while KN95 masks follow China’s regulations standard level GB2626-2006 production. It is recommended to go to the regular way to buy the required masks, wear masks to avoid hand contact with the inner side of the mask, try to make the mask and the face have a good fit, in order to prevent improper protection.