Chiyambireni mliri wa COVID-19 zaka zoposa 2 zapitazo, zopumira za N95 zatenga gawo lofunikira pazida zodzitetezera (PPE) za ogwira ntchito yazaumoyo padziko lonse lapansi.
Kafukufuku wa 1998 adawonetsa kuti chigoba cha National Institute of Occupational Safety and Health (NIOSH) chovomerezeka cha N95 chimatha kusefa 95 peresenti ya tinthu tating'onoting'ono tokhala ndi mpweya, ngakhale sichinapeze kachilomboka. chigoba chimatsimikizira kuthekera kwake kosefa tinthu tandege.
Tsopano, gulu lofufuza kuchokera ku Yunivesite ya Monash ku Australia lati masks oyezetsa a N95 ophatikizidwa ndi makina osewerera a HEPA amapereka chitetezo chabwino kwambiri ku tinthu tating'onoting'ono ta kachilomboka.
Malinga ndi wolemba wamkulu Dr Simon Joosten, Monash University Monash Health Medicine Senior Research Fellow ndi Monash Health Respiratory ndi Sleep Medicine Physician, phunziroli linali ndi zolinga zazikulu ziwiri.
Yoyamba ndi "kuwerengera kuchuluka kwa anthu omwe adayipitsidwa ndi ma aerosols pomwe akuvala mitundu yosiyanasiyana ya masks komanso zishango zakumaso, mikanjo ndi magolovesi".
Pa kafukufukuyu, gululo lidayezera chitetezo choperekedwa ndi masks opangira opaleshoni, masks a N95, ndi masks a N95 omwe ali oyenera.
Masks opangira opaleshoni omwe amatha kutaya amateteza wovalayo ku madontho akulu akulu. Imathandizanso kuteteza wodwala ku kupuma kwa wovalayo.
Masks a N95 amakwanira kumaso kuposa masks opangira opaleshoni. Imathandizira kuti wovala asapume mu tinthu tating'ono ta aerosol, monga ma virus.
Chifukwa mawonekedwe a nkhope ya aliyense ndi osiyana, simitundu yonse ndi mitundu ya masks a N95 omwe ali oyenera aliyense. Bungwe la US Occupational Safety and Health Administration (OSHA) limapereka pulogalamu yoyezetsa koyenera komwe olemba anzawo ntchito amathandizira antchito awo kudziwa kuti ndi masks a N95 ati omwe amapereka chitetezo kwambiri.
Chigoba choyezedwa bwino cha N95 chiyenera kukwanira bwino, ndipo pamapeto pake chimapereka "chisindikizo" pakati pa m'mphepete mwa chigoba ndi nkhope ya wovalayo.
Dr. Joosten adauza MNT kuti kuwonjezera pa kuyesa masks osiyanasiyana, gululi likufuna kudziwa ngati kugwiritsa ntchito zosefera zonyamula za HEPA kungapangitse phindu la zida zodzitetezera kuti ziteteze wovala ku ma virus aerosol.
Zosefera za High Efficiency Particulate Air (HEPA) zimachotsa 99.97% ya tinthu tating'ono ting'onoting'ono ta 0.3 microns.
Phunziroli, Dr. Joosten ndi gulu lake adayika wogwira ntchito zachipatala, yemwe adagwira nawo ntchito yoyesera, mu chipinda chachipatala chosindikizidwa kwa mphindi 40.
Ali m'chipindamo, otenga nawo mbali adavala PPE, kuphatikiza magolovesi, chovala, chishango cha nkhope, ndi imodzi mwa mitundu itatu ya masks - opaleshoni, N95, kapena N95 yoyezetsa. PPE, komanso sanavale maski.
Ofufuzawo adawonetsa ogwira ntchito zachipatala ku mtundu wa nebulized wa phage PhiX174, kachilombo ka HIV kopanda vuto komwe amagwiritsidwa ntchito poyesera chifukwa cha genome yake yaying'ono.Ofufuzawo adabwereza kuyesa pogwiritsa ntchito makina osefera a HEPA mu chipinda chachipatala chosindikizidwa.
Pambuyo pa kuyesera kulikonse, ochita kafukufuku adatenga zotupa za khungu kuchokera kumalo osiyanasiyana pa thupi la wogwira ntchito zaumoyo, kuphatikizapo khungu pansi pa chigoba, mkati mwa mphuno, ndi khungu pamphumi, khosi ndi pamphumi. masiku.
Atasanthula zotsatira, Dr. Joosten ndi gulu lake adapeza kuti ogwira ntchito yazaumoyo atavala masks opangira opaleshoni ndi masks a N95, anali ndi kachilombo kochulukirapo kumaso ndi mphuno. anali atavala.
Kuwonjezera pamenepo, gululo linapeza kuti kuphatikiza kwaKusefera kwa HEPA, masks oyezetsa a N95, magolovesi, mikanjo ndi zishango zakumaso amachepetsa kuchuluka kwa ma virus mpaka pafupifupi zero.
Dr. Joosten amakhulupirira kuti zotsatira za phunziroli zimathandiza kutsimikizira kufunika kophatikiza zopumira zoyezetsa za N95 ndi kusefera kwa HEPA kwa ogwira ntchito yazaumoyo.
"Izi zikusonyeza kuti pamodzi ndi HEPA fyuluta (13 mpweya fyuluta kuphana pa ola), kudutsa N95's zoyenera mayeso angatetezere kuchuluka kwa ma aerosols tizilombo," iye anafotokoza.
"[Ndipo] zikuwonetsa kuti njira yosanja yoteteza ogwira ntchito yazaumoyo ndiyofunikira komanso kusefa kwa HEPA kumatha kulimbikitsa chitetezo cha ogwira ntchito yazaumoyo m'malo awa."
MNT inalankhulanso ndi Dr. Fady Youssef, katswiri wa pulmonologist wovomerezeka, dokotala komanso katswiri wodziwa zachipatala ku MemorialCare Long Beach Medical Center ku Long Beach, California, ponena za phunziroli.
"Mamitundu ndi mitundu yosiyanasiyana ya masks a N95 amafunikira kuyesedwa kwawokha - sikukwanira konse," adatero Dr. Youssef.Ngati mwavala chigoba chomwe sichikukwanirani, sichikutetezani.”
Ponena za kuwonjezera kwazosefera za HEPA zonyamula, Dr. Youssef adanena kuti pamene njira ziwiri zochepetsera zimagwira ntchito pamodzi, ndizomveka kuti padzakhala mgwirizano waukulu komanso zotsatira zake.
"[Iwo] imawonjezera umboni [...] kuonetsetsa kuti pali njira zingapo zochepetsera zosamalira odwala omwe ali ndi matenda obwera ndi mpweya kuti achepetse komanso kuti athetse kuwonekera kwa ogwira ntchito yazaumoyo omwe akuwasamalira," anawonjezera.
Asayansi agwiritsa ntchito mawonekedwe a laser kuyesa mtundu wanji wa chishango chodzipangira tokha chomwe chili chabwino kwambiri popewa kufalikira kwa mpweya…
Zizindikiro zazikulu za COVID-19 ndi kutentha thupi, chifuwa chowuma komanso kupuma movutikira. Dziwani zambiri zazizindikiro zina ndi zotsatira zomwe zikuyembekezeka apa.
Ma virus amapezeka paliponse, ndipo amatha kupatsira chamoyo chilichonse.Pano, phunzirani zambiri za ma virus, momwe amagwirira ntchito, komanso momwe angatetezedwe.
Ma virus monga coronavirus yatsopano ndi yopatsirana kwambiri, koma pali njira zambiri zomwe mabungwe ndi anthu angachite kuti achepetse kufalikira kwa ma viruswa.
Nthawi yotumiza: May-21-2022