W/O Active Carbon Dust Mask: Non-woven fabrics Standard: CE EN149/ NIOSH/ FDA/ AS/NZS1716 ... tiny micron particle. Application:Industrial, building, grinding, casting, agriculture, farming, electronic, food processing, cement, textile, carving, heavy metal pollution, gardening, glass ... , FDAAustralia: AS/NZS1716 P1, P2 W/O Active Carbon Dust Mask:HDM-8232