Dust mask with valve:
1) Meeting the N95 quality criteria (USA)2) with multi-layered non-poisonous, non-allergic, non-stimulating materials. 3) Adjust the bandage strip and the built-in bandage foam cushion to adapt to various face-shapes with comfortable sealing.
4) The high-efficient and strong electrostatic filtering materials effectively filter the solid particle dust, The filter efficiency achieves 95%, and prevent the oil liquid gas.
5) The breather valve makes your breath easy by reducing heat accumulation. 6) Use for sanding, sweeping, grinding medicine, disintegration projects, cement, Agriculture and animal husbandry, cutting dust, pollutes from heavy metal.