Ose fa'amatalaga pu'upu'u lea ile potu fa'aaliga fou.O oloa faʻaalia autu e aofia ai le ea i le ea vevela exchangers, ea dehumidifiers, vevela toe faʻaleleia ventilators HRV, malosi toe faʻaleleia ventilators ERV, ea disinfection iunite, ea feʻaveaʻi iunite, ma isi. O loʻo ia i matou le tele o oloa fofo ea e fetaui ma manaoga eseese o talosaga.