Bacterial Filtration Efficiency (BFE): 99.0%
High Performance 4-Layer Filter Mask - More effective in blocking airborne fine particulate (PM 2.5) , viruses, dust, pollen and other allergens.
99% of the fine particles in the air are cut with the high filtration of the non-woven 4-layer filter! (Research by Nelson Research Institute)
Made in Japan
Photo is for illustration purposes only.