Kev kho mob cov pa oxygen concentrators, feem ntau hu ua lub siab viav vias adsorption oxygen concentrators, siv lub tshuab nqus viav vias adsorption los tsim cov pa oxygen, uas tuaj yeem tshem tawm cov pa tawm ntawm huab cua. Molecular sieves yog loaded rau hauv kev kho mob oxygen concentrators, nrog thaj tsam ntawm 800-1000m2/g. Nyob rau hauv lub siab, lub cev adsorption thiab desorption cov tswv yim ntawm molecular sieves yog siv los adsorb nitrogen los ntawm huab cua. Unadsorbed oxygen yog sau thiab purified kom tau txais cov pa oxygen siab. Nyob rau hauv kev txo qis ntawm cov molecular sieve, yav tas los adsorbed nitrogen gas yuav raug tso tawm rau hauv huab cua. Thaum pressurized dua, nitrogen tuaj yeem adsorbed rau oxygen. Yog li ntawd, kev kho mob cov pa oxygen concentrators tuaj yeem ua tiav lub sijhawm cyclic oxygen ntau lawm, uas yog cov txheej txheem dynamic.
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