Li-mask tsa bongaka hangata li bitsoaMask oa ho Buoa or Mask ea mokhoaka Senyesemane, hape e ka bitsoaMask ea meno, Mask ea ho itšehla thajana, Mask ea Sefahleho sa Bongaka, etc. Ha e le hantle, lia tšoana.Lebitso la mask ha le bontše hore na ke phello efe ea tšireletso e molemo.

Leha mabitso a fapaneng a Senyesemane a hlile a bua ka limaske tsa bongaka, hangata ho na le mekhoa e fapaneng.Li-mask tsa setso tse sebelisoang ka phaposing ea ho buoa ke "Tlamahane” masela a tlamisang (ka ho le letšehali setšoantšong se ka holimo), tse ngata haholo li bitsoa limaske tsa ho buoa.Li-mask tsa ho buoa li boetse li entsoe ka marapo.Bakeng sa batho ba tloaelehileng, "Earloop” ear-hook (ka ho le letona setšoantšong se ka holimo) mask a bongaka a tla ba bonolo haholoanyane ho a sebelisa.

Litekanyetso tsa boleng ba limaske tsa bongaka tsa ho buoa

Li-mask tsa bongaka tsa bongaka United States li tlas'a tumello ea FDA 'me li hloka ts'ebetso e itseng ea ho hloekisa likaroloana, ho hanyetsa mokelikeli, lintlha tsa ho chesa, joalo-joalo, ho finyella litekanyetso.Joale litlhoko tse tloaelehileng tsa limaske tsa bongaka tsa bongaka ke life?FDA e hloka limaske tsa bongaka ho fana ka lintlha tse latelang tsa tlhahlobo:

• Ts'ebetso ea Ts'ebetso ea Baktheria (BFE / Bacterial Filtration Efficiency): sesupo se lekanyang bokhoni ba limaske tsa bongaka ho thibela ho feta ha libaktheria ka marotholi.Mokhoa oa tlhahlobo oa ASTM o ipapisitse le aerosol ea baeloji e boholo ba 3.0 microns mme e na le Staphylococcus aureus.Palo ea libaktheria e ka sefshoa ka mask a bongaka.E hlalosoa e le peresente (%).Ha liperesente tse phahameng li le matla, matla a mask a thibela libaktheria.
• Phatlalatso e Ntle ea ho Filtration (PFE / Particle Filtration Effective): e lekanya phello ea ho sefa ea limaske tsa bongaka ho likaroloana tsa sub-micron (boholo ba vaerase) ka boholo ba pore pakeng tsa 0.1 microns le 1.0 microns, hape e hlahisoang e le liperesente (%), liperesente tse holimo, ho ntlafatsa bokhoni ba mask ba ho thibela likokoana-hloko.FDA e khothaletsa ho sebelisa libolo tsa latex tse sa nkeng lehlakore tsa 0.1 micron bakeng sa tlhahlobo, empa likaroloana tse kholo le tsona li ka sebelisoa bakeng sa tlhahlobo, kahoo ela hloko hore na "@ 0.1 micron" e tšoailoe kamora PFE%.
• Ho hanyetsa Mokelikeli: E lekanya bokhoni ba limaske tsa ho buoa ho hanela ho kenella ha mali le maro a 'mele.E hlalosoa ka mmHg.Ha boleng bo phahame, ts'ebetso ea ts'ireletso e betere.Mokhoa oa tlhahlobo oa ASTM ke ho sebelisa mali a maiketsetso ho fafatsa maemong a mararo a khatello: 80mmHg (khatello ea venous), 120mmHg (khatello ea mali) kapa 160mmHg (khatello e phahameng e ka bang teng nakong ea ts'oaetso kapa opereishene) ho bona hore na mask a ka thibela ho phalla hoa mokelikeli ho tloha bokantle ho leba ho bokahare.
• Phapano ea Khatello (Delta-P / phapang ea khatello): e lekanya khanyetso ea phallo ea moea ea limaske tsa bongaka, ka pono e bonts'a phefumoloho le boiketlo ba limaske tsa bongaka, ka mm H2O / cm2, boleng bo tlase, maske a phefumolohang haholoanyane.
• Ho tuka / Ho ata ha Lelakabe (ho cha): Hobane ho na le lisebelisoa tse ngata tsa bongaka tsa elektronike tse nang le matla a phahameng ka kamoreng ea ho sebetsa, ho na le mehloli e mengata ea ho khantša, 'me tikoloho ea oksijene e batla e lekane, kahoo mask a buoang a tlameha ho ba le ho lieha ho itseng ha lelakabe.

Ka liteko tsa BFE le PFE, re ka utloisisa hore limaske tse tloaelehileng tsa bongaka kapa limaske tsa ho buoa li na le litlamorao tse itseng joalo ka limaske tsa thibelo ea seoa, haholoholo ho thibela mafu a mang a hasang haholo ke marotholi;empa limaske tsa bongaka ha li khone ho sefa likaroloana tse nyane moeeng.E na le phello e fokolang ho thibela libaktheria le mafu a bakoang ke moea a ka fanyehoang moeeng.

Litekanyetso tsa ASTM bakeng sa Limaske tsa ho Buoa tsa Bongaka

ASTM Chinese e bitsoa American Society for Testing and Materials.Ke e 'ngoe ea mekhatlo e kholo ka ho fetisisa ea maemo a machaba lefatšeng.E sebetsa ka thata ho etsa lipatlisiso le ho etsa litlhaloso tsa thepa le litekanyetso tsa mekhoa ea liteko.FDA e boetse e amohela mekhoa ea tlhahlobo ea ASTM bakeng sa limaske tsa ho buoa.Li lekoa ho sebelisoa litekanyetso tsa ASTM.

Tekolo ea ASTM ea limaske tsa bongaka tsa bongaka e arotsoe ka mekhahlelo e meraro:

• ASTM Level 1 Lower Barrier
• ASTM Level 2 Moderate Barrier
• ASTM Level 3 High Barrier

E ka bonoa ho tsoa ka holimo hore tekanyetso ea tlhahlobo ea ASTM e sebelisa0.1 micron likaroloanaho lekola katleho ea tlhoekiso eaPFElikaroloana.E tlase ka ho fetisisaMohato oa 1mask a bongaka a tlameha ho khona hosefa libaktheria le likokoana-hloko tse tsamaisoang ka 95% kapa ho feta tsa marotholi, le tse tsoetseng pele haholoanyaneLevel 2 le Level 3limaske tsa bongaka li kasefa libaktheria le livaerase tse tsamaisoang ke 98% kapa ho feta ea marotholi.Phapang e kholo pakeng tsa maemo a mararo ke ho hanyetsa metsi.

Ha u reka limaske tsa bongaka, metsoalle e lokela ho sheba litekanyetso tsa setifikeiti tse ngotsoeng ka har'a sephutheloana, hore na ke litekanyetso life tse lekoang, le hore na ho finyelloa litekanyetso life.Mohlala, limaske tse ling li tla re feela "E kopana le maemo a 3 a ASTM F2100-11", ho bolelang hore ba kopana le maemo a ASTM Level 3 / High Barrier.

Lihlahisoa tse ling li ka thathamisa boleng bo bong le bo bong ba tekanyo.Ntho ea bohlokoa ka ho fetisisa ho thibela kokoana-hloko ke"PFE% @ 0.1 micron (katleho ea 0.1 micron filtration)".Ha e le litekanyo tse lekanyang ho hanyetsa mokelikeli le ho chesa ha phallo ea mali, Ho sa tsotellehe hore na boemo bo phahameng ka ho fetisisa ba litekanyetso bo na le phello e fokolang.

CDC Anti-sewa Tlhaloso ea Mask

Li-mask tsa ho buoa tsa bongaka: eseng feela ho thibela ea apereng ho jala likokoana-hloko, empa hape o sireletsa ea apereng ho tloha ho spray le li-splashes tsa metsi, 'me a be le phello e thibelang mafu a jalang ka likaroloana tse kholo tsa spray;empa limaske tse tloaelehileng tsa bongaka ha li khone ho sefa tse nyane Particulate aerosol ha e na phello e thibelang mafu a bakoang ke moea.

Li-mask tsa N95:e ka thibela likaroloana tse kholo tsa marotholi le ho feta 95% ea li-aerosol tse nyenyane tse se nang oli.Ho roala maske a netefalitsoeng a N95 a N95 ka nepo ho ka thibela mafu a bakoang ke moea 'me ho ka sebelisoa e le boemo bo tlase ba limaske tse sireletsang mafu a moea a kang lefuba la lefuba le SARS Leha ho le joalo, limaske tsa N95 ha li khone ho sefa khase kapa ho fana ka oksijene,' me ha li loketse khase e chefo kapa e tlase. libaka tsa oksijene.

Li-mask tsa Opereishene tsa N95:kopana le litekanyetso tsa N95 particle filtration, thibela marotholi le mafu a bakoang ke moea, le ho thibela mali le maro a 'mele a ka' nang a hlaha nakong ea ho buuoa.FDA e lumelletse limaske tsa ho buoa.