Zeolite molekụla sieves nwere mmetụta nkewa siri ike na nitrogen na oxygen.Ọ nwere nhazi na njirimara nke kristal, elu bụ ọkpụkpụ siri ike, na oghere dị n'ime ya nwere ike ịrụ ọrụ nke molecules adsorbing.Enwere pores ejikọrọ na ibe ha n'etiti oghere, na ụmụ irighiri ihe na-agafe na pores.N'ihi ọdịdị dị ọcha nke pores, nkesa pore nke sieve molecular dị nnọọ otu.Sives molekụla na-ahọrọ nke ọma na-edobe ụmụ irighiri ihe na-adabere na nha oghere dị n'ime kristal ha, ya bụ, na-eme ka ụmụ irighiri ihe dị n'otu nha ma na-achụpụ ụmụ irighiri ihe ndị buru ibu.

Ụdị: 5A zeolite molecular sieves, lithium zeolite, sodium zeolite.13X HP zeolite.