Dust mask A.EN132747:2003, EN143:2000 and CE0121 B.With valve or without valve C.Style:ear-loop D.Comfort,safe Dust mask1 ... .Meeting the international quality criteria (EU): EN149:2001, EN132747:2003, EN143:2000 and ... , grinding medicine, disintegration projects, cement, agriculture and animal husbandry, cutting dust, pollutes from heavy metal. FFP1 Dust Mask