Puas muaj qhov sib txawv ntawm N95 qhov ncauj qhov ntswg thiab KN95 qhov ncauj qhov ntswg?

Daim duab yooj yim to taub no piav qhia qhov txawv ntawm N95 thiab KN95 qhov ncauj qhov ntswg.N95 qhov ncauj qhov ntswg yog Asmeskas daim npog ntsej muag;KN95 yog Suav daim npog ntsej muag.Txawm hais tias muaj ntau qhov sib txawv ntawm ob lub qhov ncauj qhov ntswg, ob lub qhov ncauj qhov ntswg yog tib yam hauv cov haujlwm uas tib neeg feem ntau nyiam.

Mask chaw tsim tshuaj paus 3M tau hais tias, "Muaj laj thawj ntseeg tias" Tuam Tshoj tus KN95 "sib npaug rau" Tebchaws Meskas N95.Daim npog ntsej muag hauv Tebchaws Europe (FFP2), Australia (P2), Kaus Lim Qab Teb (KMOEL) thiab Nyiv (DS) kuj zoo sib xws.

Dab tsi N95 thiab KN95 muaj sib xws

Ob lub qhov ncauj qhov ntswg tuaj yeem ntes 95% ntawm cov khoom.Ntawm qhov ntsuas no, N95 thiab KN95 qhov ncauj qhov ntswg yog tib yam.

Vim tias qee cov qauv ntsuas tau hais tias N95 thiab KN95 qhov ncauj qhov ntswg tuaj yeem lim 95% ntawm cov khoom ntawm 0.3 microns lossis ntau dua, ntau tus neeg yuav hais tias lawv tsuas tuaj yeem lim 95% ntawm cov khoom ntawm 0.3 microns lossis ntau dua.Lawv xav tias lub qhov ncauj qhov ntswg tsis tuaj yeem lim cov khoom me dua 0.3 microns.Piv txwv li, qhov no yog ib daim duab ntawm South China Morning Post.Lawv txawm hais tias "N95 lub qhov ncauj qhov ntswg tuaj yeem tiv thaiv cov neeg hnav los ntawm kev nqus cov khoom loj dua 0.3 microns hauv txoj kab uas hla."

Txawm li cas los xij, qhov ncauj qhov ntswg tuaj yeem ntes cov khoom me me dua li ntau tus neeg xav.Raws li cov ntaub ntawv empirical, nws tuaj yeem pom tau tias lub qhov ncauj qhov ntswg ua tau zoo heev hauv kev lim cov khoom me me.

Qhov txawv ntawm N95 thiab KN95 qhov ncauj qhov ntswg

Ob leeg ntawm cov qauv no xav kom lub npog ntsej muag raug kuaj pom thaum ntes cov ntsev ntsev (NaCl), ob qho tib si ntawm tus nqi ntawm 85 litres ib feeb.Txawm li cas los xij, muaj qee qhov sib txawv ntawm N95 thiab KN95, ntawm no los hais txog.

Cov kev sib txawv no tsis loj, thiab tsis muaj qhov sib txawv ntau rau cov neeg uas feem ntau siv lub qhov ncauj qhov ntswg.Txawm li cas los xij, muaj qee qhov sib txawv tseem ceeb:

1. Yog tias cov chaw tsim khoom xav kom tau txais tus qauv KN95, nws yog ib qho tsim nyog yuav tsum tau ua lub npog ntsej muag ntawm tus neeg tiag tiag, thiab tus nqi xau (feem pua ​​​​ntawm cov khoom xau los ntawm sab ntawm lub npog ntsej muag) yuav tsum yog ≤8%.N95 qhov ncauj qhov ntswg tsis tas yuav tsum tau kuaj xyuas.(Nco ntsoov: Qhov no yog lub teb chaws yuav tsum tau rau cov khoom muag. Ntau lub tuam txhab lag luam thiab tsev kho mob yuav xav kom lawv cov neeg ua hauj lwm ua qhov kev ntsuam xyuas foob.)

2. N95 lub qhov ncauj qhov ntswg muaj qhov yuav tsum tau muaj kev poob siab thaum nqus tau.Qhov no txhais tau tias lawv yuav tsum tau ua pa ntau dua.

3. N95 qhov ncauj qhov ntswg kuj muaj qhov yuav tsum tau nruj me ntsis rau lub siab poob thaum lub sij hawm exhalation, uas yuav tsum tau pab txhim kho lub breathability ntawm daim npog qhov ncauj.

Cov ntsiab lus: Qhov txawv ntawm N95 thiab KN95 qhov ncauj qhov ntswg

Cov ntsiab lus: Txawm hais tias tsuas yog KN95 lub qhov ncauj qhov ntswg yuav tsum xeem dhau qhov kev sim foob, ob lub qhov ncauj qhov ntswg N95 thiab KN95 qhov ncauj qhov ntswg tau pom zoo los lim 95% ntawm cov khoom.Tsis tas li ntawd, N95 qhov ncauj qhov ntswg muaj qhov yuav tsum tau muaj zog rau kev ua pa.