Mkonzi wa mbiri ya chigoba cha N95
Chigoba cha N95 ndi chimodzi mwazinthu zisanu ndi zinayi zopumira zotsimikizika za NIOSH. ”N” imayimira kuti yosamva mafuta. ku chiwerengero chodziwika cha ma particles oyesera apadera.95% mwa mfundozi sizomwe zimakhalapo, koma zochepa.N95 si dzina lachindunji, malinga ngati likugwirizana ndi muyezo wa N95 ndipo likuvomerezedwa ndi NIOSH. Gulu la chitetezo la N95 limatanthauza kuti kusefera kwa zinthu zosefera za chigoba pazinthu zopanda mafuta (monga fumbi, nkhungu ya asidi, nkhungu ya penti, tizilombo tating'onoting'ono, ndi zina zotero) ndi 95% poyesedwa ndi muyezo wa NIOSH.
Ntchito ndi cholinga kusintha
Kusefedwa kwa chigoba cha N95 pa tinthu tating'onoting'ono ta 0.075 m± 0.02 m ndikupitilira 95%.Matauni a aerodynamic a spores opangidwa ndi bakiteriya ndi mafangasi amasiyana makamaka pakati pa 0.7 ndi 10 m komanso ali mkati mwa chigoba cha N95. Chifukwa chake, chigoba cha N95 chitha kugwiritsidwa ntchito poteteza kupuma kwa tinthu tina tating'ono, monga kupukuta, kuyeretsa ndi kukonza fumbi kuchokera ku mchere, ufa ndi zinthu zina, ndi zina, ndizoyeneranso zamadzimadzi kapena zopanda mafuta. kupopera mbewu mankhwalawa, zomwe sizitulutsa zowopsa zosakhazikika
Imatha kusefa bwino ndikuyeretsa fungo losazolowereka lomwe limakokedwa (kupatula mpweya wapoizoni), kuthandizira kuchepetsa kuchuluka kwa tinthu tating'onoting'ono tating'onoting'ono tating'onoting'ono (monga nkhungu, anthrax bacillus, TB bacillus, etc.), koma sikuthetsa chiopsezo chotenga matenda, matenda kapena imfa [1].
Dipatimenti ya zantchito ku US yalimbikitsa masks a N95 kwa ogwira ntchito yazaumoyo kuti ateteze ku matenda obwera ndi ndege monga fuluwenza ndi chifuwa chachikulu.
Mkonzi wa miyezo ya chitetezo
Zina zopumira zovomerezeka za NIOSH zikuphatikizapo N95, N99, N100, R95, R99, R100, P95, P99, ndi P100. Miyezo yachitetezoyi imatha kuphimba chitetezo cha N95.
"N" imayimira kusagonjetsedwa ndi mafuta, oyenera kuzinthu zopanda mafuta.
"R" imayimira mafuta osamva mafuta, oyenera mafuta kapena osapaka mafuta. Ngati amagwiritsidwa ntchito poteteza tinthu tating'onoting'ono, nthawi yogwiritsira ntchito sikuyenera kupitirira maola 8.
"P" imayimira umboni wamafuta, oyenera mafuta kapena osapaka mafuta, ngati amagwiritsidwa ntchito ngati tinthu tating'onoting'ono, nthawi yogwiritsira ntchito iyenera kutsatira zomwe wopanga apanga.
"95", "99" ndi "100" amatanthawuza kusefera kwachangu mukayesedwa ndi 0.3 micron.
Kuyenerera kuyang'ana mkonzi
Kuphatikiza pa kusefera kwa chigoba, kulimba pakati pa chigoba ndi nkhope ndi chimodzi mwazinthu zofunika zomwe zimatsimikizira kuti chigobacho chikugwira ntchito bwino. pa nkhope ya wovala, onetsetsani kuti mpweya ukhoza kutuluka ndi kulowa mu chigoba pansi pa chikhalidwe choyandikira m'mphepete mwa nkhope.
Fumbi ndi mkonzi wa zamankhwala
Cao xuejun, wachiwiri kwa wamkulu wa dipatimenti yogulitsa katundu waunduna wa zamakampani ndiukadaulo wazidziwitso, adatero pamsonkhano wa atolankhani Lachiwiri,
Masks a N95 ndi masks okhala ndi kusefera bwino mpaka 95%. Iwo anawagawa m'magulu awiri: mafakitale chitetezo fumbi ndi chitetezo zachipatala. [2]
"Ogwira ntchito amanyamula masks oteteza zachipatala a N95 (chithunzi chomwe chidatengedwa pa Feb. 8). M'masiku aposachedwa, shenyang shengshi medical technology co., LTD., wopanga yekha masks oteteza zachipatala a N95 m'chigawo cha Liaoning, wakhala akupanga zoposa Maola 20 patsiku kuti awonetsetse kuti tsiku lililonse amapanga masks opitilira 20,000 m'chigawo cha hubei ndi chigawo cholumikizira.[3]
Industrial fumbi N95 ndi KN95 ndi anti - sanali mafuta particles, ndipo mankhwala N95 ndi mankhwala opumira (osati anti - particles, komanso ayenera kuteteza madzimadzi, etc.). (chithunzi cha appendix cha
xinhuanet.com ndi "N95" ndipo zotsatirazi ndi "chigoba choteteza kuchipatala")