❇️ High-performance filter sheet for masks ❇️ For 6 sheets ✨ Please check my profile ✨ Although unopened, it has been stored at home, so I'm listing it as "Like New." Please consider this item if you understand that it is a home-stored item and has been inspected by an amateur. ☺︎ Made in Japan, using non-woven fabric, PFE test certificate obtained. Nose Mask Pit. 99% cut for viruses, PFE 0.1, PM2.5, etc. !! High-performance filter sheet for masks, for 6 sheets (virus protection). Washable and reusable. 8-38