I-aperture ye-molecular sieve 5A imalunga ne-5 angstroms, ebizwa ngokuba yi-calcium molecular sieve.Ingasetyenziswa kuxinzelelo lwe-adsorption yezixhobo ze-oxygen-making kunye ne-hydrogen-making industry.
Umgaqo osebenzayo weesefu zemolekyuli unxulumene ikakhulu nobungakanani bepore yeesefu zemolekyuli, bZinokuthengisa iimolekyuli zerhasi ezinobubanzi bemolekyuli buncinci kunobukhulu bepore.Ubukhulu besayizi yepore, ubukhulu be-adsorption umthamo.Ubungakanani be-pore buhluke, kwaye izinto ezihluzwayo kunye nokwahlukana nazo ziyahluka.Xa zisetyenziswe njenge-desiccant, i-molecular sieve inokuthatha ukuya kwi-22% yobunzima bayo kumswakama.