1. Naanị otu ojiji.
2. CE nke sitere na SGS,CE0598, kwekọọ na EN149:2001+A1:2009 FFP2 NR ọkọlọtọ.
3. Ihe na-adịghị egbu egbu na nke na-adịghị ewe iwe ;5-plys, Nkọwa ihe: PP spunbond mpụta oyi akwa, Igwe ikuku ikuku na-ekpo ọkụ, PP agbaze agbaze akwa filtration dị elu, PP gbazere akwa akwa filtration, PP spunbond n'ime oyi akwa.
4. Ihe nzacha ihe nzacha (PFE): EN 149 ≥94%.
5. FFP2 na-enye oke urughuru na nje nje arụmọrụ.
6. FFP2 nha: 155×105mm.
7. gbochie nje bacteria, uzuzu, pollen, ikuku kemịkalụ particulate, anwụrụ ọkụ na alụlụ.
8. Ụdị ndị ọzọ dị.