3 ply face mask with earloop 1.with ce and iso approved. 2.material: non woven,unique surface water resistance and soft lining. 3.common size:17.5x9.5cm. 4.adjustable nose piece for easy use. 5.style:tie-on or ear-loop. 6.application: mainly used in hospital,medical factory and food industry. 7.breathing resistance (delta p)<5.0. 8.fluid resistant layer with unique single pleated design to prevent fluid pooling. 9.distinguished with appearance: sewing edge; folded edge; auto edge. 10.bacterial filtration efficiency (bfe%) >99%