Cov yam ntxwv ntawm KN95 |KENJOY

Tam sim no hauv peb lub neej niaj hnub, peb yuav tsum hnav lub npog qhov ncauj qhov twg peb mus, tab sis tej zaum peb tsis paub ntau txogKN95 qhov ncauj qhov ntswg.Hnub no,cov neeg muag khoom npog ntsej muag qhia peb txog kev paub yooj yim ntawm KN95 qhov ncauj qhov ntswg.

Txheem qhov chaw

KN95 yog lub npog ntsej muag Suav, uas yog hom npog ntsej muag nrog cov teeb meem tshwj xeeb lim dej hauv peb lub tebchaws.KN95 qhov ncauj qhov ntswg thiab N95 qhov ncauj qhov ntswg yeej ib yam ntawm cov particle filtration efficiency.

KN95 yog Suav tus qauv npog ntsej muag, uas los ntawm Suav teb chaws tus qauv GB 2626-2019 "Cov cuab yeej tiv thaiv ua pa rau tus kheej-priming lim Anti-particle respirator".Cov qauv no yog tus qauv tsim nyog hauv lub tebchaws hauv Suav teb, muab tso rau los ntawm Lub Xeev Kev Tswj Xyuas Kev Nyab Xeeb Kev Nyab Xeeb thiab nyob rau hauv kev txiav txim siab ntawm National Technical Committee rau Standardization ntawm cov khoom tiv thaiv tus kheej (SAC / TC 112).

Technical theem

Los ntawm qhov pom ntawm qhov kev thov, tus qauv no siv tau rau cov khoom siv tiv thaiv tus kheej zoo tib yam thiab pom cov khoom siv tiv thaiv kab mob los tiv thaiv txhua yam ntawm cov khoom, xws li lub qhov ncauj qhov ntswg, lwm qhov chaw tshwj xeeb (xws li ib puag ncig anoxic, kev ua haujlwm hauv qab dej, thiab lwm yam. ) tsis siv tau.

Los ntawm cov ntsiab lus ntawm cov khoom me me, tus qauv no txhais tau ntau yam ntawm cov khoom me me, nrog rau plua plav, pa taws, pos huab thiab kab mob, tab sis tsis txhais qhov loj ntawm cov khoom me me.

Raws li cov lim dej theem, nws tuaj yeem muab faib ua ob pawg: lim cov khoom tsis muaj roj KN thiab lim roj thiab cov khoom tsis muaj roj KP, thiab siv qhov no ua cov cim, uas zoo ib yam li N thiab R _ tes. P tau teev nyob rau hauv cov lus qhia txhais ntawm CFR 42-84-1995.

Cov teeb meem xav tau kev saib xyuas

Nws yog ib qho tsim nyog sau cia tias GB 2626-2006 "Cov cuab yeej tiv thaiv kab mob ua pa nws tus kheej nqus cov pa tawm los tiv thaiv cov pa ua pa" tab tom yuav raug siv tsis raug, hloov nws cov tshiab version ntawm GB 2626-2019 "Kev Tiv Thaiv Kev Tiv Thaiv Tus Kheej Tus Kheej Lim Anti-particulate Respirator", uas tau tshaj tawm rau tag nrho lub zej zog los ntawm Lub Xeev Kev Tswj Xyuas Kev Tswj Xyuas Kev Lag Luam thiab Kev Tswj Xyuas thaum Lub Kaum Ob Hlis 31, 2019, thiab yuav raug coj ua thaum Lub Xya Hli 1, 2020. Tus qauv tshiab tau muab tso rau thiab tso tawm los ntawm Lub Tsev Haujlwm Saib Xyuas Kev Kub Ntxhov.

Tam sim no, cov ntawv nyeem ntawm tus qauv tshiab tau raug luam tawm thiab ua rau tag nrho lub zej zog dawb xwb raws li tus qauv yuav tsum tau ua.Tus qauv tshiab ua tiav xya lub ntsiab lus xws li "aerodynamic particle size" thiab hloov kho qee qhov kev xav tau thiab kev sim, tab sis tsis hloov cov kev faib tawm, cim thiab pom kev ua haujlwm tau teev tseg hauv daim ntawv no.

N95 yog tus qauv Asmeskas

N95 daim npog ntsej muag yog ib qho ntawm 9 hom kev tiv thaiv lub ntsej muag uas tau lees paub los ntawm NIOSH (National Institute of Occupational Safety and Health, National Institute for Occupational Safety and Health).N95 tsis yog ib lub npe khoom tshwj xeeb, tsuav yog nws ua tau raws li N95 tus qauv thiab cov khoom uas tau dhau los ntawm NIOSH tshuaj xyuas tuaj yeem hu ua N95 daim npog ntsej muag, uas tuaj yeem lim cov khoom nrog lub aerodynamic txoj kab uas hla ntawm 0.075 μ m ± 0.020 μ m nrog a filtration efficiency ntau tshaj 95%.

Cov saum toj no yog kev qhia txog kev siv KN95.Peb yuav tsum paub ntau ntxiv txog FFP2 qhov ncauj qhov ntswg.Thov koj xav tiv tauj pebMask Hoobkasrau cov lus qhia.