What is KF-94, KF-80 and KF-AD
Korea's Food and Drug Administration(KFDA) presents three mask standards. Companies that produce masks must comply with strict production and quality control guidelines in order to obtain this certification of
The KF94 mask can block viruses, bacteria and fine dust most efficiently among the three mask standards. It shows the efficiency of filtering out more than 94% of 0.4 micron meter particles. This is a medical level mask and is used in many hospitals and medical institutions.
KF80 masks are produced in compliance with the same production and quality control guidelines as KF94. It has an efficiency of filtering more than 80% of 0.4 micron meter particles. Although it is somewhat less efficient than KF94, it is a useful protection tool to prevent infection under COVID19 situations.
The KF-AD mask is a mask for blocking infection in everyday life and is less efficient than KF94 or KF80, but was developed for the purpose of blocking the cause of infection in everyday life. Therefore, it is easier to breathe than KF-94 or KF-80 and blocks the cause of infection in everyday life.