Sieve ea molek'hule ea Zeolites na le phello e matla ea karohano ho naetrojene le oksijene.E na le sebopeho le litšobotsi tsa kristale, bokaholimo ke skeleton e tiileng, 'me likoti tse ka hare li ka bapala karolo ea limolek'hule tsa adsorbing.Ho na le li-pores tse hokahaneng pakeng tsa likoti, 'me limolek'hule li feta ka har'a likoti.Ka lebaka la tlhaho e hloekileng ea li-pores, kabo ea boholo ba pore ea sieve ea molek'hule e tšoana haholo.Li-sieve tsa limolek'hule li khetha limolek'hule ho latela boholo ba li-pores ka har'a likristale tsa tsona, ke hore, limolek'hule tsa adsorb tsa boholo bo itseng ha li ntse li leleka limolek'hule tsa lintho tse kholoanyane.