With valve;
Made of multi-layered nonpoisonous, non-allergic, non-stimulating materials;
Adjust the bandage strip and built-in foam cushion to adapt to
various face-shapes with comfortable sealing
High efficient and strong electrostatic filtering materials
effectively filter the solid particle dust, and prevent the oil liquid gas
Used for construction, mining, textile, grinding medicine, disintegration projects,
cement, agriculture and animal husbandry, cutting dust, pollutes from heavy metal
, agriculture and animal husbandry, cutting dust, pollutes from heavy metal