... soft, comfortable, odorless 2.without skin irritation 3.Filter pollen and dust 3-ply Non-woven Face Mask with flat ... maintenance of the machine etc.7) Laboratories and factories for block liquid mists, harmful airborne chemicals and fine particlesSpecification:1) ... professional produce face mask, surgical mask, Activated Carbon Mask, 3-Ply Face Mask, Children Mask, Headgear Mask, mask with ...