Conforms to FFP1 & FFP2 FFP3 EN149:2001 CE0194 standard. Low breathing resistance with high filtration efficency. loaded polypropylene material without any toxic, irritating, stimulant, poison. Adjustable nosepiece and inner foam proivide a custom seal for different facial sizes. Special 3-ply pleated design, hign filtration and static electricity material to resist normal toxic and ting micron particle. Suited to mining, building, grinding drugs, casting, agriculture, farming, electronic, food processing, cement textile, disintegration, carving, heavy metal pollution, gardening, glass……etc workshops.