Made in Korea Air Queen Nano fibre filter (reusable) mask (100P,200P,300P)It's a mask made of nano fiber filters. It is a breathable mask that has already been certified all over the world. There are a lot of inquiries, so I specially list them. Bebe Miso is a corporate seller, not a private seller. We only sell genuine products and only high quality products. If you need anything else, please feel free to contact us via chat. All products are available in bulk. You can also discuss the unit price when purchasing in bulk.