The wisest way to protect our lives and health is to wear a mask.
KF stands for "Korea Filter" and is a mark that certifies the performance of health masks by the Ministry of Food and Drug Safety of Korea.
KF99 grade, approved by the Ministry of Food and Drug Safety, refers to the performance standard of masks that can pass only when it has an efficiency of blocking more than 99% of fine dust particles with an average size of 0.4 μm.
