N'okpuru ụfọdụ nsogbu, na ojiji nke nitrogen na ikuku na oke nke zeolite molekụla myọ n'elu adsorption e ji mara, ya bụ na zeolite molekụla myọ adsorption nke nitrogen bụ nnọọ ukwuu karịa ego nke oxygen, usoro na-achịkwa PLC pneumatic valvụ.
