Made in JAPAN
This mask uses "Tosa" Japanese paper (WASHI) from Kochi Prefecture, one of Japan's three major Japanese papers.
40pcs (10 * 4 design)
Normal size
3-layer structure
It is a disposable mask.
PFE (Particle Filtration Efficiency): 99%
BFE (Bacterial Filtration Efficiency): 99%
VFE (Viral Filtration Efficiency): 99%
*It is a test against virus droplets, not the filtration rate of the virus itself.