Dear customer, welcome to visit our shop to buy this mask. Our masks are packaged strictly and worthy of your choice. Features: disposable KN95 masks, sanitary and convenient for using. Made of high quality material, safe, soft and comfortable. 95% filtration, provide anti-dust protection for you. Protect you from airborne particulates and pollution. Elastic straps and adjustable nose clip for different face shapes and sizes. Perfect for daily use and outdoor activities. Anti-Dust/Anti PM2.5 Filter PM2.5,and harmful substance in the air,protect your health! Specifications: Color: White Type: ears wearing Material: high quality non woven fabric,etc Standard: GB2626-2006 KN95 Protection Class: KN95 Filtering Rate: ≥95% (0.075μm particles) Applications: daily life, factory workshop,SPAs,school,working places,etc Package Included: 100/150/200 Pcs KN95 Masks Notes: 1)The mask maybe have some difference from pictures in some parts,stracture and color,etc because of different production period and some improvement done,thanks for your kind understanding. 2)The mixed styles in a selling packing happens sometime(but all the masks have the same functions and similar structures),thanks for your kind understanding.