KN100 dust mask can reach 99.97 filtering efficiency

There are many masks that are KN95 or KN90. We take KN95 as an example, and its filtration efficiency is 95%, so how much is the difference between KN100 and KN95? Some people would say, isn't it just a 5% inferior filtering effect? If you understand it this way, you are wrong. The penetration rate of KN100 is 0.01-0.03%, while the penetration rate of KN95 is 5%. According to this figure, let ’s take a look.