□ Block 99% of 0.1 [μm] particle ( Note: PM2.5 is 0.5~2.5 [μm] particle )
□ Three layers inside
□ Easy to breathe with bridge keeper
□ Anti-flog film for glasses user
□ Made in JAPAN
Size:
M ........... 175 mm x 90 mm for Adult ( Man or Woman )
S ........... 145 mm x 90 mm for Child or Woman