Non-woven Surgical Mask With FDA510K(No.:K101000) 1.Size: 12.5X9.5cm,14.5x9.5cm,17.5x9cm,17.5x9.5cm,18X9.5cm 2.Colors: white/green/blue/yellow 3.Passed the testing by Nelson Labs of the USA 4.Conform to EN14683 TYPEI,II, IR or IIR and FDA510k 5.High 99% BFE and low breathing resistance for protection against airborne particles. splatter of blood saliva 6.Unique surface water resistance and soft lining 7.Non-irritating and glass fiber free 8.Elastic: latex free(round type)/synthetic rubber(flat type) 9.Large binding anti-sliding totally 10.Nose piece: plastic nose wire/aluminum nose wire 11.Functions:environmental protection and easy and relaxed use