Hauv kev teeb tsa, dav hlau daim npog ntsej muag feem ntau yog ua los ntawm peb txheej, uas yog spunbonded tsis-ntaub npuag mown tshuab tsis-ntaub npuag spunbonded tsis-ntaub npuag. Nws yog cov yaj lub ntsej muag tsis-woven ntaub nyob hauv nruab nrab uas tuaj yeem ua lub luag haujlwm lim, yog li qhov zoo ntawm cov yaj ntawm lub npuag tsis yog ntaub qhwv hauv nruab nrab yuav ncaj qha ua rau cov nyhuv lim ntawm daim npog.
Lub ntsej muag zoo tshaj plaws peb lub ntsej muag feem ntau muaj tsib txheej, uas yog, spunbonded non-woven npuag maus plooj tsis-woven npuag lim paj rwb yaj tsis-ntaub npuag spunbonded tsis-ntaub ntaub. Ob txheej txheej ntawm lub ntsej muag maus pliav tsis-woven npuag hauv nruab nrab tuaj yeem ua kom peb lub ntsej muag muaj qhov muaj zog lim zoo heev thiab tuaj yeem tiv thaiv PM2.5. Txawm li cas los xij, piv nrog dav hlau daim npog ntsej muag, huab cua permeability ntawm peb lub ntsej muag looj yog qhov tsis zoo. Yog li qee tus nqi siab siab peb lub looj ntsej muag yuav nruab nrog lub nqus pa kom ua pa zoo.
Txheem ntawm cov lus qhia tshwj xeeb thiab cov qauv, dav hlau looj ntsej muag feem ntau muab faib ua peb qhov qauv: 1. Bfe95 / 99 cov kab mob ua kom lim dej ua haujlwm tau zoo; 2. Vfe99 tus kab mob efficiency cov qauv; 3. Pfe99 particle pom efficiency txheem.
Peb lub qhov ncauj qhov ntswg feem ntau muab faib ua American Standard thiab European tus qauv, Asmeskas tus qauv feem ntau muab faib ua N90, N95 thiab n99, thiab cov European txheem feem ntau muab faib ua ffp1, FFP2 thiab ffp3
Nws yog tsim nyog sau cia tias ntawm daim npog ntsej muag, cov txheej txheem sab hauv ntawm cov ntaub npuag tsis-ntaub yuav kho tau hydrophilic, uas yog los xyuas kom meej tias cov dej vapor tsim los ntawm kev ua pa tuaj yeem tau adsorbed ntawm cov ntaub tsis-ntaub.