Amamaski avamile afaka: amamaski kakotini,imaski elahlwayo(isib., izifihla-buso zokuhlinzwa, izifihla-buso zokuhlinzwa), kanye nezifihla-buso zokuzivikela zezokwelapha (izifihla-buso ze-N95/KN95).
Phakathi kwazo, imaski yokuvikela yezokwelapha (imaski ye-N95/KN95) kanye nemaski yokuhlinzwa yezokwelapha zombili ziyimikhiqizo yezokwelapha ebilokhu ilawulwa yisifundazwe kusukela ku-SARS ngo-2003, futhi inomsebenzi wokuvimba ukudlula koketshezi namaconsi. Uma igqokwa kahle, ingavimbela ngempumelelo izifo ezithwalwa amaconsi. Yindlela yethu yokuqala yokukhetha imaski.
I-N95 akuyona igama lomkhiqizo elithile. Umkhiqizo ohlangabezana nezindinganiso ze-N95 futhi ovunyelwe yi-NIOSH ungabizwa ngokuthi imaski ye-N95.
EShayina, amamaski e-K95 abhekisela ekuhlukanisweni kwamamaski ezinto ezingezona amafutha ngokwezinga likazwelonke laseShayina i-GB2626-2006. Ikilasi le-KN lifanelekela ukuhlunga izinto ezingezona amafutha. Ingxenye yedijithali yala mazwe amabili inezinga elifanayo. 95 ibhekisela ekusebenzeni kahle kokuhlunga ≥95%.
Ngokombono we-microbiological, ukukhetha okungcono kakhulu umshini wokuphefumula we-valve ohambisanayo, ongaphefumuli (umshini wokuphefumula we-N95/KN95)
Amamaski okuvikela ezokwelapha kumele ahlangabezane nezindinganiso ezidingekayo ze-Chinese GB 19083-2010 ngokusebenza kahle kokuhlunga ≥95% (kusetshenziswa ukuhlolwa kwezinto ezingezona uwoyela). Kuyadingeka ukuze kudlule ukuhlolwa kokungena kwegazi okwenziwe (ukuvimbela uketshezi lomzimba ukuthi lungachitheki) futhi kuhlangatshezwane nezinkomba zamagciwane.
Amamaski okuhlinza avame ukusetshenziswa emakamelweni okuhlinzwa nakwezinye izindawo lapho kunengozi yokuchitheka koketshezi lomzimba negazi. Angavimbela igazi noketshezi lomzimba ukuthi lungadluli kumamaski futhi angcolise umuntu ogqokile. Okwamanje, anamandla okuhlunga angaphezu kuka-95% amabhaktheriya.
Ama-virusi yizinhlayiya ezincane kakhulu esikwazi ukuzifinyelela nsuku zonke. Sijwayelene ne-PM2.5, ebhekisela ezinhlayiya ezinobukhulu bezinhlayiya obungama-micron angu-2.5 noma ngaphansi, kuyilapho ubukhulu bezinhlayiya zamagciwane busukela kuma-micron angu-0.02 kuya ku-0.3. Igciwane lincane kakhulu, aliyona ingozi?
Kuyiphutha elivamile ukuthi imaski iyisihlungo, ukuthi izinhlayiya ezincane kunembobo yesihlungo zingadlula, nokuthi izinhlayiya ezinkulu kunembobo yesihlungo zivinjiwe. Eqinisweni, uhla olusebenza kahle kakhulu lwemaski ye-N95 luphakathi kwezinhlayiya ezinkulu nezincane kakhulu.
Nakuba imaski yokuvikela yezokwelapha enezinga eliphezulu lokuvikela inomphumela ongcono wokuvikela, inokumelana okuphezulu kokuphefumula ngenxa yezinga eliphezulu lezinto zokuhlunga, ukuqina okuhle, kanye nokugqokwa isikhathi eside kuzokwandisa umthwalo wokuphefumula futhi kubangele ubunzima bokuphefumula nokunye ukungakhululeki.
Uma isetshenziswa nsuku zonke kuphela futhi ungayi ezindaweni ezisengozini enkulu yokutheleleka ngamagciwane, njengezibhedlela, ungakhetha imaski yokuhlinzwa.
Ngaphezu kokukhetha imaski efanele, kufanele futhi usebenzise efanele, futhi unake indlela yokugqoka kanye nesikhathi sokuyisebenzisa. Funda ngokucophelela indlela esephaketheni, bese uqinisekisa ukuqina komoya ngemva kokugqoka. Uma ugqoka izibuko futhi kuvela inkungu kulensi, kumele kube ngenxa yokuthiimaskiayigqokile kahle.
Isikhathi sokuthunyelwe: Septhemba-07-2020