At the beginning of 2020, as the new coronavirus swept the world, all kinds of masks gradually entered people’s field of vision and life. There are many types of masks, and the familiar ones are FFP2, FFP3, N99, N95, KN95 and KF94.
N95 masks, have ability to filter 95% or more of tiny 0. 3-m particles, are the backbone of personal protection equipment against causative agent.
KN95 can filter 95% or more of tiny 0. 3-m particles, are the main character of personal protection equipment against causative agent in China.