... Conforms to EN 149:2001+A1:2009 4. Protection: dust/mist 1) Meeting the international quality criteria(Europe): EN149 ... The high-efficient and strong electrostatic filtering materials effectively filter the solid particle dust, and prevent the oil liquid gas ... , disintegration projects, cement, agriculture and animal husbandry, cutting dust, pollutes from heavy metal. Packing: 12PCS/box, 20boxes/CTN ...