Nzira chaiyo yekusarudza masiki ekurapa | JINHAOCHENG

Zvichienderana nekushanda kwesefa kushoma
Masiki emuAmerica akajairika anoongororwa neNational Institute of Occupational Safety and Health (NIOSH) nekuda kwekushandisa kwavo sefa uye kushanda zvakanaka kwekusefa. Standard yeAmerican NIOSH 42CFR-84 inozivikanwa zvakanyanya pasi rose.

Zvichienderana nechinhu chinosefa chiri pakati pemask, kune mhando nhatu:

N inomiririra kuti Haina simba remafuta, izvo zvinogona kudzivirira kubva kuzvinhu zvisina mafuta zvakasungirirwa. Semuenzaniso, fume yemafuta inogadzirwa nekubika ine mafuta, nepo madonhwe anogadzirwa nevanhu vanotaura kana kukosora asina mafuta. Kazhinji, zvinhu zvisina mafuta zvinoreva guruva remarasha, guruva resimende, mhute yeasidhi, tupukanana, nezvimwewo. Mukusvibiswa kwemhute iripo, tupukanana twakawanda twakasungirirwa hatuna mafuta. Fume yemafuta inoreva fume yemafuta, mhute yemafuta, fume yeasphalt, nezvimwewo.
R inomiririra kuti Inodzivirira mafuta, iyo inogona kudzivirira zvidimbu zvisina mafuta uye zvakasungirirwa, asi kana ikashandiswa kune zvidimbu zvine mafuta, nguva yekushandisa haifanirwe kudarika maawa masere.
P inomiririra Oil Proof, iyo inogona kudzivirira kubva kuzvinhu zvisina mafuta uye zvakanyungudutswa. Kana ichienzaniswa neR series, P series inogona kushandiswa kwenguva yakareba, zvichienderana nechiratidzo chemugadziri.
Nenzira iyi, zviri nyore kunzwisisa kuti chifukidzo cheN95 chii. Chifukidzo cheN95 chinoedzwa ne 0.3 micron sodium chloride particles, uye chiyero chekudzivirira chinofanira kunge chiri pamusoro pe95%. Kana chiso chemunhu akapfeka chikaedzwa kuti chakamanikana, zvinoonekwa kuti mweya unogona kupinda nekubuda nepachifukidzo kana chiri pedyo nemucheto wechiso. Nhamba yesitifiketi yeN95 inopihwa pabvunzo iyi.
KN imhando yeChinese, uye nzira yayo yekuona yakafanana neyeUnited States. Zvichienderana neGB2626-2006 standard yenyika yangu, masiki akakamurwa muzvikamu zveKN neKP. KN zvinoreva masiki akakodzera kusefa zvidimbu zvisina mafuta, uye KP zvinoreva masiki akakodzera kusefa zvidimbu zvine mafuta. Uye zvidimbu zvisina mafuta. Nhamba iri mushure mebhii inomiririra dziviriro yemasiki, nhamba yacho yakakura.
Nzira yekudzivirira inofanira kushandurwa sei pakati pemasiki matatu akasiyana? Zviri pachena kuti EU FFP inogona kusefa zvidimbu zvisina mafuta uye zvine mafuta panguva imwe chete, nepo N neKN muUnited States neChina zvinongogona kusefa zvidimbu zvisina mafuta chete.

Saka, fomura yavo yekudzivirira inenge iri: FFP3>FFP2=N95=KN95>KN90

1. Masiki ekurapa anoshandiswa kudzivirira masprays anoburitswa mumuromo nemumhino, uye anogona kushandiswa kamwe chete pakuchengetedza hutsanana munzvimbo dzekurapa dzakajairika dzine dziviriro yakaderera. Akakodzera mabasa ehutano, akadai sekuchenesa, kugadzira mvura, kuchenesa mayunitsi emubhedha, nezvimwewo, kana kudzivirira tupukanana tusiri tunokonzera hutachiona hwakadai semupore.
Basa rinonyanya kushanda remasiki 95 nderekudzivirira nekudzora kupararira kwezvirwere zvakakomba zvekufema, zvakaita seSARS kana furuwenza uye kubuda kwekoronavirus itsva. Unogona kusarudza masks dzakanyorwa KN95, N95, FFP2 uye pamusoro pezvinodiwa.
2. Ongororo dzakaratidza kuti mukati mehuwandu hwakatarwa, masiki ekuvhiya haana kuipa kupfuura masiki eKN95/N95 mukudzivirira furuwenza. Zhong Nanshan, mutungamiri weboka renyanzvi dzepamusoro reNational Health Commission kurwisa SARS, akatiwo, "Chokwadi ndechekuti, hazvidikanwi kupfeka masiki eN95. masiki akajairika anogona kudzivirira madonhwe mazhinji ane hutachiona kuti asapinde mumhepo uye kudzivirira coronavirus itsva. , Zvinobatsira kupfeka masiki." Saka kana usingakwanise kutenga masiki eN95, unogona kusarudza masiki ekuvhiya akajairika.
5. Masiki eKN95/N95 akakamurwa kuita mhando mbiri, imwe inofema nemuviri uye imwe inofema neguruva.
Matanho avo ekudzivirira akafanana, asi mwero wekushandiswa kwawo wakasiyana. Mwero wemasiki anodzivirira zvipenyu (medical KN95) iGB19083-2010 "Zvinodiwa zveTechnical zveMasiki Anodzivirira Zvekurapa", iyo inoshandiswa mumaindasitiri ekurapa nehutano, senge nzvimbo dzekudzivirira denda, zvipatara, nenzvimbo dzekudzivirira zvirwere. Muchina wekufema guruva (KN95) unoshandisa mwero weGB2626-2006 "Respiratory Protective Equipment Self-priming Filtered Anti-Particulate Respirator", iyo inoshandiswa mumaindasitiri akadai sekuchera marasha, kugadzira peturu, migodhi uye mamwe mabhizinesi emaindasitiri nekuchera migodhi.
Kana uri kuishandisa munzvimbo yakajairika, unogona kusarudza mask yeKN95 (kana N95 kana iri iyo standard yeAmerica) yeGB2626-2006. Kana iri nzvimbo yekurapa kana kusangana nevanhu vane hutachiona, zvakakosha kudzivirira kubhururuka kunokonzerwa nemvura yemuviri wemurwere kana kupfapfaidza ropa. Kana uine furo, unofanirwa kushandisa masks eKN95 anoshandisa standard yeGB19083-2010.
Muchidimbu, munzvimbo ine njodzi huru, masiki anogona kudzivirira hutachiona hwekufema zvinobudirira masiki ekudzivirira ekurapa uye masiki ekuvhiya ekurapa. Mashiki ekudzivirira ekurapa, anozivikanwawo seMedical KN95, akakodzera kushandiswa nevashandi vezvehutano mumakiriniki efivha, mawadhi ekuzviparadzanisa, uye varwere vakasimbiswa kana vatamiswa. Mashiki ekuvhiya ekurapa akakodzera kupfeka vanhu vanofungidzirwa kuti vane chirwere ichi. Anopfekwa nevashandi vekutakura vanhu nevatambi, matekisi, vatyairi, vashandi vekuchenesa, nevashandi vebasa munzvimbo dzeveruzhinji.

Isa matanho ekudzivirira pakushandisa masiki:

1. Kana ikashandiswa kudzivirira tunhu tune mafuta, nguva yekushandisa yekirasi R haipfuure maawa masere panguva imwe chete; nguva yekushandisa yekirasi P haipfuure maawa makumi mana, kana kuti nguva yekushandisa inosvika mazuva makumi matatu kubva pakutanga, chero ipi zvayo inouya pakutanga.
2. Masiki ekudzivirira haafanirwe kusukwa nemvura, nekuti kusukwa nemvura kunoparadza zvinhu zvinosefa uye chimiro chemasiki; kana isina kusvibiswa kana kukuvara, uye ichizadzisa zvinodiwa nehutsanana, inogona kutariswa kuti ishandiswezve.
3. Mask yeN95 haisi chiratidzo chechiratidzo kana kuti chiratidzo chechigadzirwa. N95 ndiyo inodiwa neNIOSH (National Institute of Occupational Safety and Health) kuti ikwanise kupfapfaidza mishonga yekufema yeAmerican occupational anti-particles. Kushanda zvakanaka kwemidziyo yepurasitiki (yakadai seguruva, pendi, acid mhute, tupukanana, nezvimwewo) i95%.
4. Kana mask yacho ikashanda zvakanaka pakusefa, ndipo panowedzera simba rekufema. Saka, kupfeka mask dzeN95 kwenguva yakareba hazvina kunaka kumuviri, saka usadzipfeke kwenguva yakareba.
5. Nezvekuwanda kwekutsiva masiki, parizvino hapana mhedziso yakajeka, uye nyika yangu haisati yagadzira mitemo yakakodzera panguva yekushandiswa kwemasiki. Vamwe vaongorori vakaita tsvakiridzo yakakodzera pamusoro pekushanda zvakanaka kwekudzivirira uye nguva yekupfeka masiki ekudzivirira ekurapa eKN95. Mhedzisiro yacho inoratidza kuti masiki eKN95 anopfekwa kwemazuva maviri, kushanda zvakanaka kwekusefa kunoramba kuri pamusoro pe95%, kuramba kufema kunochinja zvishoma, uye kushanda zvakanaka kwekusefa kunoderera kusvika 94.7% mushure mekupfekwa kwemazuva matatu.