Item specification: Material: Microfiber Main ingredients: non-woven fabric, meltblown fabric, hot air cotton Mask style: earloop Protection level: KN95 Filtering effect: higher than 95 Executive standard: GB-2626-2006 Certified: CE Replaceable filter media: No Function: dustproof Use range: dust, bacteria, PM2.5 Color: blue Size: one sizePackage Contents: 20 pcs KN95 maskNote:1.Light and monitor setting may cause slight color difference. 2.Please allow slight deviation as all dimensions are measured manually. The image is only for reference.Promise If the product has any quality problems, please feel free to contact us, we will help you solve the problem as quickly as possible.