Mamiriro ehunyanzvi eKN95|KENJOY

Iye zvino muhupenyu hwedu hwezuva nezuva, isu tinofanirwa kupfeka mask kwese kwatinoenda, asi isu pamwe hatizive zvakawanda nezvazvoKN95 masks.Nhasi,vatengesi vemasiki tizivise kune ruzivo rwekutanga rweKN95 masks.

Standard source

KN95 ndeyeChinese yakajairwa mask, inova rudzi rwemask ine tunhu twekusefa zvakanaka munyika yedu.KN95 masks uye N95 masks akanyatsofanana maererano nechidimbu chefiltration kunyatsoshanda.

KN95 ndeyeChinese yakajairwa mask, inobva kuChinese yenyika chiyero GB 2626-2019 "Kufema Inodzivirira Midziyo inodzivirirwa sefa Anti-particulate respirator".Iyi chiyero inosungirwa chiyero chenyika muChina, chakaiswa pamberi neState Administration of work Safety uye pasi pesimba reNational Technical Committee yeKumisikidzwa kwemidziyo yekudzivirira yega (SAC/TC 112).

Technical level

Kubva pakuona kwechikamu chekushandisa, chiyero ichi chinoshanda kune zvakajairwa kuzvimisikidza uye kusefa zvidziviriro zvekufema kudzivirira marudzi ese ezvimedu, semasks, mamwe matunhu akakosha (senge anoxic nharaunda, kushanda pasi pemvura, nezvimwe. ) hazvishande.

Kubva pane tsananguro yechinhu chemukati, chiyero ichi chinotsanangura akasiyana siyana echinhu, kusanganisira guruva, utsi, mhute uye tupukanana, asi haitsanangure saizi yechinhu.

Zvinoenderana neiyo sefa element level, inogona kukamurwa kuita zvikamu zviviri: sefa isiri-oiri particulate matter KN uye sefa ine mafuta uye isina mafuta particulate nyaya KP, uye shandisa ichi sechiratidzo, chakafanana neN uye R _ ruoko. P inotsanangurwa mumirayiridzo yekududzira yeCFR 42-84-1995.

Nyaya dzinoda kutarisirwa

Zvakakosha kucherechedza kuti GB 2626-2006 "Kufuridzira Kudzivirira midziyo yekuzvifemedza sefa Anti-particulate respirator" yave kuda kushaya simba, kutsiva yayo nyowani vhezheni yeGB 2626-2019 "Respiratory Protection self-priming filter Anti-particulate respirator", iyo yakapihwa nzanga yese neState Administration of Market Supervision and Administration musi wa31 Zvita 2019, uye ichashandiswa zviri pamutemo musi waChikunguru 1, 2020. Chiyero chitsva chinoiswa pamberi uye chinoiswa pamberi neEmergency Management Department.

Parizvino, chinyorwa cheiyo chiyero chitsva chakaburitswa uye chakaitwa kuti chiwanikwe kunharaunda yese pasina muripo sechiyero chinosungirwa.Chiyero chitsva chinozadzisa mazwi manomwe akadai se "aerodynamic particle size" uye inogadzirisa zvimwe zvinodiwa zvehunyanzvi uye nzira dzekuyedza, asi haigadzirise kurongeka, kumaka uye kusefa zvakanaka kwakanyorwa mupepa rino.

N95 chiyero cheAmerica

N95 mask ndeimwe yemhando 9 dzemasks ekudzivirira anosimbiswa neNIOSH (National Institute of Occupational Safety and Health, National Institute for Occupational Safety and Health).N95 harisi zita chairo rechigadzirwa, chero bedzi richisangana neN95 chiyero uye chigadzirwa chakapfuura ongororo yeNIOSH chinogona kunzi N95 mask, inogona kusefa zvimedu zvine dhayamita yeaerodynamic ye0.075 μ m ± 0.020 μ m ine kusefa kunyatsoshanda kweanopfuura 95%.

Izvo zviri pamusoro ndiko kusuma kwehunyanzvi kweKN95.Isu tinofanirwa kuziva zvakawanda nezve FFP2 masks.Ndapota inzwa wakasununguka kubata yedumask factorynokuda kwezano.