FFP2 mask 1) Meeting the international quality certificate (Europe): EN149:2001 2) With multi-layered nonpoisonus, non-allergic, non-stimulating materials. 3) Adjust the bandage strip and the built-in bandage foam cushion to adapt various face-shapes with comfortable sealing. Special desing and the breath is more relaxed. 4) The high-efficient and strong electrostatic filtering materials effectively filter the solid particle dust and prevent the oil liquid gas. 5) Use for construction, mining, textile, grinding medicine, disintegration projects. agriculture and animal husbandry, cutting dust, pollutes from heavy metal. 6) Shelf life: 5 years. Storage conditions: Maximum humidity:<85% Temperature range:-17--32degree. 7) Avaliable preventing dust and gas. 8) Clean, healthy and safty.