Specifications: this 3-ply face mask is used to filter the particles in the air,and help to prevent the droplets,liquid, and blood,bacteria.. Specification : 2ply 3ply Surgical face mask Material : non woven fabric 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 FDA 510K (NO:K101000) 5.Conform to EN14683 TYPE I, II, IR or IIR 6.High 99% BFE and low breathing resistance for protection against airborne particles. splatter of blood saliva 7.Unique surface water resistance and soft lining 8.Non-irritating and glass fiber free 9.Elastic: latex free(round type)/synthetic rubber(flat type) 10.Large binding anti-sliding totally 11.Nose piece: plastic nose wire/aluminum nose wire Application: face mask is used to filter the particles in the air,and help to prevent the droplets,liquid,and blood,bacteria.......... face mask