E le gata ina fa'amalo le pa'u eletise, fa'aogaina le fa'aogaina, ae o lo'o iai fo'i uiga e le o'ona, antibacterial, ma le pala.E la'ititi le fa'agaioia o le valve butterfly fa'aeletise, (40% maualalo nai lo le valve butterfly masani HAVC ma le pine).I tua atu o le aoga aoga o le eletise butterfly valve, o foliga vaaia e matagofie ma tulaga ese pe a faatusatusa i isi HAVC butterfly valve.O le valve butterfly e faʻaaogaina eletise e talafeagai mo le tuʻuina atu o vai ma alavai, paipa kesi mo le faʻatonutonuina, ma isi.E le gata i lea, o valve butterfly eletise e mafai ona faʻalavelaveina le tafe o meaʻai, vailaʻau, vailaʻau kemisi, suauu, eletise eletise, ie, pepa, ma isi. tau.Fa'afeiloa'i e fa'afeso'ota'i i matou pe a iai ni au fesili e uiga i a matou va'a lele lele!