3 theem ntawm qhov ncauj qhov ntswg yog dab tsi?
Qhov ncauj qhov ntswg feem ntau tau muab faib ua peb theem raws li lawv qhov kev pom zoo, kev siv, thiab kev tiv thaiv lawv muab.
Cov theem no tseem ceeb tshwj xeeb hauv kev kho mob thiab chaw tsim khoom lag luam:
1. Daim npog ntsej muag phais lossis kho mob (Qib 1, 2, thiab 3)
Lub npog ntsej muag phais tau muab faib ua peb theem raws li ASTM cov qauv, feem ntau tsom rau cov dej tsis kam:
Qib 1: Kev tiv thaiv qis, tsim nyog rau cov txheej txheem dav dav nrog cov kua dej tsawg tsawg.
Theem 2: Kev tiv thaiv kab mob nruab nrab, tsim nyog rau cov txheej txheem nrog lub teeb rau nruab nrab ntawm cov kua dej.
Qib 3: Kev tiv thaiv kev tiv thaiv siab, siv rau hauv cov xwm txheej uas muaj cov kua dej hnyav, xws li kev phais.
Cov qhov ncauj qhov ntswg tiv thaiv cov tee dej loj thiab txaws tab sis tsis yog tsim los rau lim cov pa me me.
2. Cov tshuab ua pa (piv txwv li, N95, FFP2/FFP3)
Cov tshuab ua pa muab kev tiv thaiv qib siab dua los ntawm kev lim tawm yam tsawg kawg 95% ntawm cov pa hauv huab cua. Lawv feem ntau raug cais los ntawm cov qauv hauv cheeb tsam:
N95 (NIOSH): Lim 95% ntawm cov pa hauv huab cua.
FFP2 / FFP3 (European qauv): FFP2 lim 94%, thiab FFP3 lim 99%.
Lub tshuab ua pa muaj lub kaw ntom ntom nyob ib puag ncig lub ntsej muag thiab zoo tagnrho rau ib puag ncig nrog cov khoom siv aerosolized, xws li thaum muaj kev sib kis lossis kev lag luam.
3. Daim npog qhov ncauj
Cov ntaub npog ntsej muag yog tsim los ntawm ntau yam ntaub thiab muab kev tiv thaiv yooj yim los ntawm kev txo qis kev sib kis ntawm cov pa ua pa. Lawv txoj kev ua tau zoo nyob ntawm cov yam xws li cov khaubncaws sab nraud povtseg, hom ntaub, thiab qhov haum. Lawv tsis raug ntsuas rau kev kho mob lossis kev siv hauv kev lag luam tab sis tsim nyog rau kev siv pej xeem hauv thaj chaw tsis muaj kev phom sij.
Txhua hom thiab qib ntawm daim npog ntsej muag haum rau cov xwm txheej tshwj xeeb, nrog cov qib siab dua muab kev tiv thaiv ntau ntxiv rau cov xwm txheej txaus ntshai.
