... with valve 1.CE EN 149:2001FFP3 2.OEM with high quality 3.Delivery in time 4.Use in many industrial1) Meeting ... effectively filter the solid particle dust, and prevent the oil liquid gas.5) Use for construction, mining, textile, grinding medicine, disintegration ... ,agriculture and animal husbandry, cutting dust, pollutes from heavy metal. HIGH QUALITY FFP3 mask cone type with valve by CE/FDA/ISO ...