FFP1 mask
FFP1 mask ndiyo idiki yekusefa mask yevatatu.
Aerosol kusefa muzana: 80% zvishoma
Internal leak rate: yepamusoro 22%
Inonyanya kushandiswa seguruva mask (semuenzaniso we DIY mabasa).Guruva rinogona kukonzera zvirwere zvemapapu, senge silicosis, anthracosis, siderosis uye asbestosis (kunyanya guruva rinobva silica, marasha, iron ore, zingi, aruminiyamu kana simende zvinowanzoitika njodzi).
FFP2 mask
FFP2 masks echiso ane uye asina vharafu yekufemesa
Aerosol kusefa muzana: 94% zvishoma
Internal leak rate: yepamusoro 8%
Iyi mask inopa dziviriro munzvimbo dzakasiyana siyana senge indasitiri yegirazi, yekutanga, kuvaka, indasitiri yemishonga uye zvekurima.Inonyatsomisa makemikari eupfu.Iyi mask inogona zvakare kushanda sedziviriro kubva kuhutachiona hwekufema hwakadai seavian furuwenza kana yakanyanya acute kufema syndrome yakabatana neiyo coronavirus (SARS), pamwe nekurwisa mabhakitiriya echirwere chepneumonic uye tibhii.Yakafanana neiyo US-standard N95 respirator.
FFP3 mask
FFP3 kumeso mask
Aerosol kusefa muzana: 99% zvishoma
Internal leak rate: yepamusoro 2%
Iyo FFP3 mask ndiyo inonyanya kusefa yeFFP masks.Inodzivirira kubva kune akanyanya kunaka zvimedu senge asbestos uye ceramic.Haidziviriri kubva kumagasi uye kunyanya maokisi enitrogen.