Isetyenziselwa ukuzalisa ama-pores amahle ebusweni beetayile eziphuculweyo, ezinika iileyile eziphuculweyo isiphumo sesibuko esihlala ixesha elide. Inomkhuhlane ohlala ixesha elide, ukuxhathisa amabala, ukuxhathisa ukunxiba, ukuxhathisa kweasidi kunye nealkali, njl. Izinto zokulungiselela.