FFP1 mask
Chigoba cha FFP1 ndiye chigoba chocheperako mwa atatuwo.
Kusefera kwa Aerosol: 80% osachepera
Kutulutsa kwamkati: kupitirira 22%
Amagwiritsidwa ntchito makamaka ngati chigoba chafumbi (mwachitsanzo ntchito za DIY).Fumbi lingayambitse matenda a m'mapapo, monga silicosis, anthracosis, siderosis ndi asbestosis (makamaka fumbi lochokera ku silika, malasha, chitsulo, zinki, aluminiyamu kapena simenti ndizowopsa zomwe zimachitika kawirikawiri).
FFP2 mask
FFP2 masks amaso okhala ndi valavu yotulutsa mpweya komanso opanda mpweya
Kusefera kwa Aerosol: 94% osachepera
Mlingo wotuluka mkati: mpaka 8%
Chigobachi chimapereka chitetezo m'malo osiyanasiyana monga mafakitale agalasi, zoyambira, zomangamanga, mafakitale ogulitsa mankhwala ndi ulimi.Amayimitsa bwino mankhwala a ufa.Chigobachi chitha kukhalanso ngati chitetezo ku ma virus opuma monga fuluwenza ya avian kapena matenda opumira kwambiri okhudzana ndi coronavirus (SARS), komanso motsutsana ndi mabakiteriya a mliri wa chibayo ndi chifuwa chachikulu.Ndizofanana ndi chopumira cha US-standard N95.
FFP3 mask
FFP3 nkhope mask
Kusefera kwa Aerosol: 99% osachepera
Kutulutsa kwamkati: kupitirira 2%
Chigoba cha FFP3 ndiye kusefa kwambiri kwa masks a FFP.Zimateteza ku tinthu tating'ono kwambiri monga asibesitosi ndi ceramic.Sichiteteza ku mpweya komanso makamaka ma oxide a nayitrogeni.