He aha ka kānana HEPA?

Me ka hoʻohaumia ʻana o ka pollution koʻikoʻi koʻikoʻi, hoʻomau ka ʻike ʻana i ka kaiapuni o nā mea kūʻai aku, ua lilo ka pilikia o ka haumia ea i mea hopohopo nui. I mea e hoʻomaikaʻi ai i ka maikaʻi o ka ea, nui nā mea kūʻai aku e koho e hoʻohana i nā lako kānana. Eia nō naʻe, he nui nā ʻano o nā mea kānana, ma waena o ka HEPA kānana i kaulana loa i waena o nā mea kūʻai.

ʻO ka ʻoiaʻiʻo, ʻo ka kānana HEPA ka nui o ka ultrafine polypropylene fiber kānana pepa a i ʻole ke aniani fiber kānana pepa, ka lole ʻaʻole i ulana ʻia, ka mea hoʻoheheʻe wela, ka mea hoʻopaʻa, ka ʻaoʻao o waho a pēlā aku. Hana ʻia ka pepa kānana aniani e nā ʻano aniani o ka mānoanoa a me ka lōʻihi ma hope o ka mālama kūikawā. ʻO nā hiʻohiʻona nui o kēia mea he pale wela kiʻekiʻe, ka hana kiʻekiʻe, ka nui o ka lepo lepo, ke kūpaʻa maikaʻi, ka manawa lawelawe lōʻihi, etc.

Akā me ka hoʻomohala ʻana o ka ʻepekema a me ka ʻenehana, ʻaʻole i hoʻololi iki ka puka ʻana o nā mea kānana fiber kemikal hou i nā mea kānana fiber kemikal. Akā he nui nā manawa me nā koi hoʻomaʻemaʻe kiʻekiʻe, ʻo ka noi nui he pepa kānana fiber glass, ʻo ia hoʻi, kānana HEPA.

ʻO ke kumu hana nui o ka kānana HEPA ʻo ia ka hana ʻana o nā ʻāpana lepo i ka lewa i ka neʻe inertial a i ʻole ka neʻe Brownian maʻamau me ke kahe ʻana o ka ea. I ka neʻe ʻana ma lalo o ka hana a kekahi ikaika, e hui pū nā ʻāpana me nā mea pale ʻē aʻe, a ʻo ka ikaika umekaumaha ma ka ʻili o nā ʻāpana e hoʻopili ai i nā mea pale. ʻO kēia ke ʻano e hoʻopili ʻia ai ka lepo ea.

Ke hele ka lepo i loko o ka kānana, e hana ka pepa kānana i nā pale he nui i nā fibers, e hoʻopili i ka mea i hoʻokuʻu ʻia a me nā microorganisms i ka ʻili o ka mea kānana fiber, a e hele mālie ka ea maʻemaʻe ma hope o ka kānana.

Ua hoʻohana nui ʻia kēia mea kānana ma nā ʻano he nui, e like me: ventilation engineering, keʻena hana halemai a me ka lumi asepsis, hale hana meaʻai, hale hana lāʻau lapaʻau, ea ea waena, air freshener a pēlā aku. Aia kekahi mau manawa me nā koi koʻikoʻi i ka hoʻomaʻemaʻe ʻana i ka ea, pono pono kēia kānana HEPA.

Hiki i nā kānana HEPA ke hoʻoneʻe i ka liʻiliʻi loa he 97.00% nā ʻāpana ea o 0.3 micrometer (μm) anawaena. ʻO nā mea kānana maʻamau no kēia anawaena o ka lepo ea he paʻakikī loa ke hana