Comfortable 7-layer pleated mask made of soft material, ideal for PM2.5 protection. - Quantity: 7 masks per pack - Size: Small size (145mm x 90mm) - Filter: 7-layer pleats - Virus Protection: PM2.5 protection - Individually wrapped - Material: Soft material - Manufacturer: Hakujuji Co., Ltd. Sold as a set of 6 packs. Although unused and unopened, please understand that these items have been stored at home. Thank you for your understanding. Thank you for viewing.