nkhani

Kutengera ndi dzikolo, zikhalidwe ndi miyezo yosiyana imagwira ntchito pachitetezo cha pakamwa ndi mphuno komanso masks opumira.

Chidule chotsatirachi chikuwonetsa mayendedwe ndi miyezo yoyenera kwambiri yokhudzana ndi magulu atatu azogulitsa "Single Use Face Mask", "Pakamwa ndi Mphuno Kuteteza" ndi "Kusefa Chidutswa cha Nkhope":

Chitetezo Pakamwa ndi Mphuno

Chitetezo cha pakamwa ndi mphuno, chomwe chimadziwikanso kuti chigoba cha opaleshoni, chimapangidwa makamaka kuti chiteteze ku madontho ochokera ku nasopharynx ya wovala.Wodzivala yekha amatetezedwa ku splashes zazikulu ndi chigoba.

Kuyesa ndi kugawa kwazinthu zoteteza pakamwa ndi mphuno ku Europe zimatengera muyeso wa Bacterial Filtration Efficiency (BFE) ndi Resistance Resistance malinga ndi DIN EN 14683: 2014.Ku China ndi USA, masks amayesedwanso ndikugawidwa ndi Particle Filtration Efficiency (PFE).

Poyerekeza ndi chidutswa cha nkhope yosefera, chitetezo cha pakamwa ndi mphuno chimakhala ndi kupuma pang'ono ndipo nthawi zambiri sichikwanira mokwanira kotero kuti kupuma kumadutsa.Mitundu yodzitchinjiriza pakamwa ndi mphuno yolembedwa "R" imakhala ndi kukana kwamadzi ndi ma aerosols

Kusefa Chigawo cha nkhope

Filtering Face Pieces (FFP) imaphimba mphuno ndi pakamwa ndikuteteza ku fumbi lopumira, utsi ndi nkhungu zamadzimadzi (aerosol).Ntchito yoteteza masks opumira imakhazikika ku Europe molingana ndi DIN EN 149:2009 ndipo imagawidwa masks m'magulu achitetezo FFP1, FFP2 ndi FFP3.:

Chosankha pagulu ndikutulutsa kwathunthu kwa chigoba.Izi zimachitika chifukwa cha kusefedwa kwa tinthu ting'onoting'ono (> 0.6 µm) komanso kutayikira pakati pa chimango ndi nkhope ya wovala.Pamene mphamvu yotetezera ndipo motero kumangika kumawonjezeka, momwemonso kukana kupuma kwa chigoba.