Material: Polyester fiber+filter cloth+active carbon cloth+non woven clothSize: 14*13*5cmPacking: 20PCS/box, 400PCS/cartonIn the standard of CE(EN1041/EN980/EN14155-1/EN140/EN14683)1. It is used for the protection from tiny dust particle, and is suitable for the work under varied special environment. 2. The design for the valve is suitable for long wear in the wet and hot environment. More Product Features HS Code: 63079000 Trademark: HYKY Standard: CE Productivity: 50, 000pcs/day Unit Price/Payment: 0.3usd/pcs Origin: China Packing: 20pcs/Box, 400pcs/Carton Min. Order: 50, 000pcs Export Markets: North America, South America, Southeast Asia, Africa, Mid East, Eastern Asia, Western Europe Company: Huanyu Kangyu Labor Protection Appliances Co., Ltd.