Uvula umnyango wekamelo lokulala ekuseni futhi kukhona into ezwakala isinda emoyeni, nakuba amafasitela ayeboshiwe ubusuku bonke. Isibuko sasegumbini lokugezela sihlala sinomusi isikhathi eside ngemva kokugeza, iphunga lokupheka lingena ephasishi, futhi ungqimba oluncane lothuli luhlala emashalofini ezinsukwini ezimbalwa ngemva kokusula. Ikhaya elivaliwe, elivikelwe kahle ligcina ukushisa ngaphakathi, kodwa futhi ligcina umswakama, iphunga, izinto ezingezinhle kanye ne-carbon dioxide, futhi akukho ukulungisa izinga lokushisa okungakulungisa lokho. Yilapho-ke uhlelo lwe-Fresh Air System oluklanywe kahle luthola khona indawo yalo: ludonsa umoya wangaphandle ohlungiwe lungene futhi lukhiphe umoya odala ngaphandle, igumbi ngegumbi, ihora ngehora. Inkinga ukuthi lonke uhlelo lusebenza kahle ngendlela efanayo nefan eliluhambisayo, futhi ifan eliyindilinga elikhethwe ngomkhuba hhayi ngezibalo lizokwenza umsindo, limoshe amandla, noma lihluleke ngokuthule ukuletha umoya odingekayo emakamelweni akho. Lo mhlahlandlela uchaza ukuthi yini okufanele uyihlole ngaphambi kokuba u-ode, indlela i-Enchoy, umkhiqizi womthombo odabuka e-Finland, esondela ngayo ekukhetheni ifan, nendlela yokugwema amaphutha aphendula umklamo omuhle wamapayipi ube ukudumala okunomsindo.

I-Fresh Air System ayisona nje iwindi elivulekile elinefiltha elifakwe kulo. Iletha umthamo olawulwayo womoya wangaphandle endlini, ihambise lowo moya ekuhlungwini, bese iwusabalalisa ngenethiwekhi yamapayipi nezindawo zokungenisa umoya ukuze yonke indawo ehlala abantu ithole ingxenye yayo. Ngokukhipha ngokuqhubekayo inani elilinganayo lomoya omdala, iphinde inciphise ukungcola okufana ne-volatile organic compounds, izinhlayiya zokupheka, uthuli olucolekile kanye ne-carbon dioxide eningi esikhundleni sokuyivumela ukuthi inqwabelane. Lokho kushintshana okulinganiselayo kubalulekile nasengcindezini: uhlelo olunomoya omningi wokungenisa lusunduza umoya luphume ngezikhala zezindonga, kanti uhlelo olunomoya omningi wokukhipha ludonsa umoya ongalungisiwe lungene ngazo, futhi zombili lezi zimo zithinta ukunethezeka nomswakama. Ipayipi lomoya omusha, i-intake grille, i-furnace fresh air intake kanye ne-fresh air treatment unit konke kusebenza njengezingxenye zenethiwekhi eyodwa yengcindezi, ngakho ukushintsha endaweni eyodwa kubonakala kwenye indawo. Ngenxa yalokhu, ukuzinza kokuhamba komoya hhayi ukufakwa kwamapayipi kuphela okunquma ukuthi uhlelo lusebenza ngempela yini. Lapho ukuhamba komoya kuduka, amagumbi asekupheleni komzila awatholi umoya owanele kuyilapho amagumbi aseduze nefeni ethola umoya omningi kakhulu, futhi abahlali babona ukungalingani ngaphambi kokuba babone imishini.

Ukukhethwa kwesihlungi kuma phakathi kwalokhu kulinganisa, ngoba sonke isihlungi sengeza ukuphikisa okufanele iphanke ilwe nakho. Isihlungi esicolekile sibamba izinhlayiya eziningi kodwa sibiza umfutho omile omningi, futhi uma iphanke ingakwazi ukubamba umoya wayo kulokhu kuphikisa, uhlelo ludla kancane amakamelo elakhelwe ukuwavikela. Ukulawulwa komswakama kuncike esimisweni esifanayo, ngoba umoya ogcwele umswakama udinga ukukhishwa ngokuthembekile kunokuba uhlale eduze kwezindawo ezibandayo. Izilawuli ezifana nesilawuli sokungenisa umoya sendlu yonke se-honeywell zingahlela futhi zilungise ukusebenza, kodwa asikho isilawuli esingakha ukugeleza komoya iphanke engakwazi ukukukhiqiza endaweni yangempela yokusebenza. Yingakho ukuklanywa kokungenisa umoya kuhlala kuqala ngomsebenzi okufanele iphanke iwufeze, hhayi ngobukhulu bomlomo wamapayipi. I-Fresh Air System eklanywe kahle incike ekugelezeni komoya okuzinzile, hhayi nje ekufakweni kwamapayipi.

Ama-fan ayindilinga adumile emsebenzini wokungenisa umoya ngesizathu esingokoqobo: ukuma kwawo kuhambisana namapayipi ayindilinga, ngakho-ke afakwa kalula ophahleni, emigodini yesevisi nasezindaweni zomshini lapho imishini eyindilinga ingeke ingene khona. Emisebenzini yezindlu kanye neyezohwebo elula, leso simo esincane senza kube lula ukuhambisa amapayipi ezakhiweni eziwumngcingo ngaphandle kokwengeza izinguquko ezibukhali ezimosha umfutho. Ukukhethwa kusancike ezintweni ezine ezingahlobene nokuma kwendlu: umfutho, ukugeleza komoya, izinga lomsindo kanye nomjikelezo wokusebenza. Ifan elibukeka lifana nelinye imodeli eshalofini lingase liziphathe ngendlela ehluke kakhulu uma lihlangana nesihlungi, umzila omude wamapayipi kanye namajika amabili noma amathathu. Ku-Fresh Air System, ifan kufanele lihambisane nejika lesistimu, hhayi usayizi wegumbi kuphela. Uhlu lwamafan ayindilinga akwa-Enchoy lwenzelwe ngqo izinhlelo zokungenisa umoya futhi lunomlando wobunjiniyela odabuka eFinland, okubonakala endleleni i-impeller, imoto kanye nendlu ezihambisana ngayo esikhundleni sokuhlanganiswa izingxenye ezingahlobene.

Ama-duct ayindilinga futhi enza ukulinganisa kube lula, ngoba umoya ohamba ngesigaba esiyindilinga kulula ukuwulawula ngama-damper futhi kulula ukuwuvala ngokuphepha kunokuhlangana okuxande. Ama-fan angaphakathi ayindilinga angasebenza njengamayunithi okunikeza noma okukhipha umoya, futhi isitayela somzimba esifanayo sivame ukuhlanganisa imisebenzi eminingana uma i-motor ne-impeller kucaciswa kahle. Abathengi eSuzhou, eShanghai nakwamanye amadolobha anomswakama bavame ukucela iyunithi ehlangene kodwa eqhubeka nokugcina umoya lapho umswakama wasehlobo ukhuphuka, futhi leso sicelo sihamba siqonde emuva ekusebenzeni kwengcindezi hhayi kububanzi. Ukuqina nakho kubalulekile, ngoba i-fan yokungenisa umoya ingase isebenze ngokuqhubekayo iminyaka futhi i-motor engahambisani kahle izobonisa ubunzima emsindweni, ekushiseni nasekuncipheni kwempilo yama-bearing. Ukubuyekeza uhlu oluphelele lwemikhiqizo ngaphambi kokunciphisa uhlu kusiza abathengi ukuthi baqhathanise okufanayo nokufanayo esikhundleni sokuqagela ezithombeni.