• mabapi le rona

Livaerase tsa moea: Karolo ea limaske tsa N95 tse hlahlobiloeng hantle le lifilthara tsa HEPA

Ho tloha ha koluoa ​​​​ea COVID-19 e qala lilemo tse fetang 2 tse fetileng, li-respirators tsa N95 li phethile karolo ea bohlokoa ho lisebelisoa tsa ts'ireletso tsa motho (PPE) tsa basebetsi ba bophelo bo botle lefatšeng ka bophara.
Phuputso ea 1998 e bonts'itse hore Setsi sa Naha sa Ts'ireletso le Bophelo bo Botle (NIOSH) se amohetsoeng ka N95 mask se khonne ho sefa liperesente tse 95 tsa likaroloana tse tsamaeang le moea, leha e sa ka ea bona vaerase. mask e etsa qeto ea bokhoni ba eona ba ho sefa likaroloana tse tsamaisoang ke moea.
Hona joale, sehlopha sa lipatlisiso se tsoang Univesithing ea Monash e Australia se re limaske tse lekiloeng tsa N95 tse kopantsoeng le sistimi e nkehang ea HEPA li fana ka tšireletso e ntle ka ho fetisisa khahlano le likaroloana tsa vaerase tse tsamaisoang ke moea.
Ho ea ka mongoli ea ka sehloohong Dr Simon Joosten, Monash University Monash Health Medicine Senior Research Fellow le Monash Health Respiratory le Sleep Medicine Physician, thuto e ne e e-na le merero e 'meli e meholo.
Ea pele ke ho "lekanya hore na batho ba tšoaelitsoe hakae ke li-aerosols tsa vaerase ha ba ntse ba roetse mefuta e fapaneng ea limaske hammoho le lithebe tsa sefahleho, mese le liatlana".
Bakeng sa thuto, sehlopha se ile sa lekanya tšireletso e fanoang ke limaske tsa ho buoa, limaske tsa N95, le limaske tsa N95 tse hlahlobiloeng hantle.
Li-mask tsa ho buoa tse lahloang li sireletsa motho ea li roetseng marotholing a maholo. E boetse e thusa ho sireletsa mokuli hore a se ke a phefumoloha.
Li-mask tsa N95 li lekana sefahleho hantle ho feta limaske tsa ho buoa. E thusa ho thibela motho ea e roetseng ho hema ka likaroloana tse nyane tsa aerosol tse tsamaisoang ke moea, joalo ka livaerase.
Hobane sebopeho sa sefahleho sa motho e mong le e mong se fapane, ha se boholo le mefuta eohle ea limaske tsa N95 tse loketseng motho e mong le e mong. US Occupational Safety and Health Administration (OSHA) e fana ka lenaneo le loketseng la tlhahlobo moo bahiri ba thusang basebetsi ba bona ho tseba hore na ke limaske life tsa N95 tse fanang ka tšireletso e fetisisang.
Mask ea N95 e lekantsoeng hantle e lokela ho lekana hantle, 'me qetellong e fane ka "tiiso" lipakeng tsa sefahleho sa maske le sefahleho sa motho ea e roetseng.
Dr. Joosten o ile a bolella MNT hore ntle le ho hlahloba limaske tse fapaneng, sehlopha se ne se batla ho fumana hore na tšebeliso ea li-filters tsa HEPA tse nkehang habonolo li ka ntlafatsa melemo ea thepa ea tšireletso ea botho ho sireletsa motho ea e roetseng ho silafatsoa ke kokoana-hloko ea aerosol.
Lisebelisoa tsa High Efficiency Particulate Air (HEPA) li tlosa 99.97% ea likaroloana leha e le life tse tsamaisoang ke moea 0.3 microns ka boholo.
Bakeng sa thuto, Dr. Joosten le sehlopha sa hae ba ile ba beha mosebeletsi oa bophelo bo botle, eo le eena a ileng a kenya letsoho lenaneong la liteko, kamoreng ea kliniki e tiisitsoeng ka metsotso ea 40.
Ha ba ntse ba le ka phapusing, barupeluoa ba ne ba apere PPE, ho kenyeletsoa liatlana, seaparo, thebe ea sefahleho le e 'ngoe ea mefuta e meraro ea limaske - ea ho buoa, N95, kapa N95 e lekantsoeng hantle. PPE, hape ba ne ba sa roala limaske.
Bafuputsi ba ile ba pepesa basebeletsi ba bophelo bo botle ka mokhoa oa nebulize oa phage PhiX174, kokoana-hloko ea mohlala e se nang kotsi e sebelisoang litekong ka lebaka la genome ea eona e nyenyane.Bafuputsi ba ile ba pheta-pheta teko eo ba sebelisa mokhoa oa ho hloekisa oa HEPA ka kamoreng e koetsoeng ea kliniki.
Ka mor'a teko e 'ngoe le e' ngoe, bafuputsi ba ile ba nka li-swabs tsa letlalo ho tloha libakeng tse sa tšoaneng 'meleng oa mosebeletsi oa bophelo bo botle, ho akarelletsa le letlalo le tlas'a mask, ka hare ho nko, le letlalo lephatleng, molala le phatleng.Teko e ile ea etsoa ka makhetlo a 5 ho feta 5 matsatsi.
Kamora ho sekaseka liphetho, Dr. Joosten le sehlopha sa hae ba fumane hore ha basebeletsi ba tsa bophelo bo botle ba roala limaske tse buoang le limaske tsa N95, ba ne ba e-na le vaerase e ngata ka har'a lifahleho le linko tsa bona. li ne li aparoa.
Ho phaella moo, sehlopha se fumane hore motsoako oahloekiso ea HEPA, limaske tsa N95 tse lekiloeng, liatlana, mese le lithebe tsa sefahleho li fokolitse palo ea vaerase ho fihla maemong a haufi le zero.
Dr. Joosten o lumela hore liphetho tsa phuputso ena li thusa ho tiisa bohlokoa ba ho kopanya li-respirators tsa N95 tse hlahlobiloeng hantle le HEPA filtration bakeng sa basebeletsi ba bophelo bo botle.
"E bontša hore ha e kopantsoe le HEPA filter (13 air filter exchanges ka hora), ho fetisa tlhahlobo ea N95's fit ho ka sireletsa khahlanong le bongata ba li-aerosols tsa kokoana-hloko," o ile a hlalosa.
"[Mme] e bonts'a hore mokhoa o ikhethileng oa ho sireletsa basebeletsi ba tsa bophelo bo botle o bohlokoa le hore ho sefa HEPA ho ka ntlafatsa ts'ireletso bakeng sa basebeletsi ba tsa bophelo bo botle maemong ana."
MNT e boetse e bua le Dr. Fady Youssef, setsebi sa pulmonologist se tiisitsoeng, ngaka le setsebi sa tlhokomelo ea bohlokoa Setsing sa Bongaka sa MemorialCare Long Beach se Long Beach, California, mabapi le thuto.
Dr. Youssef o hlalositse: "Mask le mefuta e fapaneng ea limaske tsa N95 li hloka tlhahlobo ea tsona e ikhethileng - ha e tšoanelehe," ho hlalositse Ngaka Youssef.Haeba u roala maske a sa u lekanang hantle, ha ho thuse hakaalo ho u sireletsa.”
Mabapi le tlatsetso easefa se nkehang habobebe sa HEPA, Dr. Youssef o boletse hore ha maqheka a mabeli a ho fokotsa a sebetsa hammoho, hoa utloahala hore ho tla ba le synergy e kholo le phello e kholoanyane.
"[E] eketsa bopaki bo bong […] ho netefatsa hore ho na le mekhahlelo e mengata ea maano a phokotso ea ho hlokomela bakuli ba nang le mafu a bakoang ke moea ho fokotsa le ka tšepo ho felisa ho pepesehela basebeletsi ba tsa bophelo bo botle ba ba hlokomelang," a eketsa.
Bo-rasaense ba sebelisitse pono ea laser ho lekola hore na ke mofuta ofe oa thebe ea sefahleho e entsoeng hae e sebetsang hantle ho thibela phetiso ea phefumoloho ka moea…
Matšoao a mantlha a COVID-19 ke feberu, ho khohlela ho omileng le ho hema ka thata.Ithute haholoanyane ka matšoao a mang le liphetho tse lebelletsoeng mona.
Livaerase li batla li le hohle, 'me li ka tšoaetsa ntho leha e le efe e phelang.Mona, ithute haholoanyane ka livaerase, hore na li sebetsa joang, le hore na li ka sireletsoa joang.
Livaerase tse kang coronavirus e ncha li tšoaetsanoa haholo, empa ho na le mehato e mengata eo mekhatlo le batho ba ka e nkang ho fokotsa ho ata ha livaerase tsena.


Nako ea poso: May-21-2022