Cov zeolite molecular sieves muaj kev sib cais zoo rau nitrogen thiab oxygen. Nws muaj cov qauv thiab cov yam ntxwv ntawm cov siv lead ua, qhov saum npoo yog pob txha khov kho, thiab cov qhov hauv sab hauv tuaj yeem ua lub luag haujlwm ntawm kev nqus cov molecules. Muaj cov qhov txuas nrog ib leeg ntawm cov qhov, thiab cov molecules hla dhau cov qhov. Vim yog qhov huv ntawm cov qhov, qhov faib ntawm cov qhov loj ntawm cov molecular sieve yog sib xws heev. Cov molecular sieves xaiv cov molecules raws li qhov loj ntawm cov qhov hauv lawv cov siv lead ua, uas yog, nqus cov molecules ntawm qee qhov loj me thaum tiv thaiv cov molecules ntawm cov khoom loj dua.