GAC Filter o se ituaiga o kaponi fa'agaoioia granular e masani ona fa'aaogaina i vai fa'amamā vai Mua-Filter. E le gata i lea, o le mea autu autu o le carbon activated granular e mafai foi ona avea ma atigi apricot, atigi walnut, ma isi atigi fualaau aina po o koala e pei o le anthracite. O le kaponi fa'agaoioia na fausia e ala i le fa'agaoioia o nei mea e pei o mea mata na fausia ai le tele o pores laiti, ae o le tele o le tufatufaina o nei pores e le tutusa. E tusa ai ma le lautele, ua vaevaeina i latou i micropores i lalo ole 2nm, macropores i luga aʻe o le 50nm, ma mesopores i le ogatotonu (E taʻua foi o le suiga o le pu). O nisi pores e mafai ona oʻo atu i le 1000nm
Nofoaga malamalama:
1. 100% mama PP mea
2. pulou tu'ufa'atasi
3. Mea maualuga maualuga
4. Tulaga maualuga activated carbon
GAC Filter-Granular Activated Carbon (85% ~ 90% o granular activated carbon) o loʻo faʻaaogaina mo togafitiga vai ma togafitiga faʻafefe. O lona lapopoa o le 500~5000μm. O le fausaga o le pore o le GAC e masani lava ona i ai le tufatufaina o pores e tolu-faʻasalalau, lea o loʻo i ai The International Society for Pure and Applied Chemistry (IUPAC) faʻavasega macropores ma le pore diameter sili atu nai lo le 50 nm, faʻapea foʻi ma mesopores (transition pores) ma le lautele o le 2.0 i le 50 nm ma micropores i lalo ifo o le 2.0 nm.
1. O le GAC faamama elemene e mafai ona faʻapipiʻiina e ala i le faʻatumuina o mea faʻamama carbon faʻaagaoioia ma se omomi faʻapitoa i totonu.O le PP faʻafefete faʻafefete faʻamalama faʻamalo i le pito o le 20um e mafai ona puipuia lelei ai vaega laiti mai le sosolo i fafo.
2.GAC faamamae mafai ona faamama lelei ese lanu eseese, manogi, chlorine o totoe, colloidal substances, ma mea faʻafefiloi faʻalaʻau faʻafefe i totonu o le vai.
3.GAC faamamae mafai ona taofia lelei le tuputupu aʻe o siama.