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). In compliance with UNE 0064-1: 2020. Bacterial filtration efficiency (BFE) 95%. Breathability (differential pressure) < 60 Pa/cm2 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. Packing: Inner Box of 50. Decoration Position: .