Hygienic triple-layer mask with heat-sealed finish, elastic fastening and adaptable nose clip for a tight fit. Outer and inner layers made of Non-Woven (polypropylene). Intermediate layer in Meltblown (composed of 90% polypropylene and 10% viscose).Presented in an individual bag.Face mask equivalen to surgical mask type IIR, with bacterial filtration efficiency (BFE) 98% and breathability (pa/cm2) < 60, according to Standard EN 14683:2019+AC:2019, issued by credited laboratories.Non-reusable. Materials: 3 Layers. Outside 1: Non-Woven (Polypropylene) Middle Layer: Meltblown (90% Polypropylene/ 10% Viscose). Outside 2: Non-Woven (Polypropylene). Colours: White. Sizes: 17.5 x 9.5 cm.