FFP1 daim npog qhov ncauj
FFP1 daim npog qhov ncauj yog qhov lim lim tsawg tshaj plaws ntawm peb.
Aerosol pom feem pua: 80% yam tsawg kawg nkaus
Internal leak rate: siab tshaj 22%
Nws yog tsuas yog siv los ua lub ntsej muag plua plav (piv txwv li rau DIY txoj haujlwm).Plua plav tuaj yeem ua rau mob ntsws, xws li silicosis, anthracosis, siderosis thiab asbestosis (tshwj xeeb yog cov plua plav los ntawm silica, thee, hlau ore, zinc, aluminium lossis cement yog cov feem ntau muaj feem cuam tshuam).
FFP2 daim npog qhov ncauj
FFP2 lub ntsej muag lub ntsej muag nrog thiab tsis muaj exhalation valve
Aerosol pom feem pua: 94% yam tsawg kawg nkaus
Internal leak rate: siab tshaj 8%
Lub npog ntsej muag no muaj kev tiv thaiv hauv ntau qhov chaw xws li kev lag luam iav, qhov chaw tsim khoom, kev tsim kho, kev lag luam tshuaj thiab kev ua liaj ua teb.Nws ua tau zoo txwv cov hmoov tshuaj.Lub npog ntsej muag no tseem tuaj yeem ua haujlwm tiv thaiv kab mob ua pa xws li mob khaub thuas avian lossis mob ua pa hnyav cuam tshuam nrog tus mob coronavirus (SARS), nrog rau tiv thaiv cov kab mob pneumonic plague thiab tuberculosis.Nws zoo ib yam li US-tus qauv N95 ua pa.
FFP3 daim npog qhov ncauj
FFP3 daim npog qhov ncauj
Aerosol pom feem pua: 99% yam tsawg kawg nkaus
Internal leak rate: siab tshaj 2%
FFP3 daim npog qhov ncauj yog qhov lim dej feem ntau ntawm FFP lub ntsej muag.Nws tiv thaiv cov khoom zoo heev xws li asbestos thiab ceramic.Nws tsis tiv thaiv cov pa roj thiab tshwj xeeb oxides ntawm nitrogen.