... .Surgical and protective face mask High 99% BFE and low breathing resistance. 2.Unique surface water resistance and soft linin Properties ... :Surgical and protective face mask High 99% BFE and low breathing resistanceSurgical and protective face mask1.Size: 12X7cm,14.5x9.5cm ... I, II, IR or IIR6.High 99% BFE and low breathing resistance for protection against airborne particles. splatter of blood saliva7 ...