-External layer: spunbond PP 25 g/sq.m., blue, hydrophobic; -Middle layer: meltblown PP 25 g/sq.m., white, filter element; -Internal layer: spunbond PP 25 g/sq.m., white; -Bacterial Filtration Efficiency (BFE) 98%; -Differential Pressure < 60 (Pa/cm�²); -Microbial Cleanliness < 30 (cfu/g); -Adult size: 17,5 cm x 9,5 cm; -Disposable; -With pliable nose fixator; -Elastic ear contour - comfortable to wear; -English, German and Bulgarian language. -Made in the Bulgaria, with CE certification.
