Iyo VPSA Okisijeni Jenareta ndeyekudzvanywa adsorption uye vacuum kutorwa okisijeni jenareta. Mhepo inopinda mumubhedha weadsorption mushure mekumanikidzwa. A special molecular sieve inosarudza adsorb nitrogen, carbon dioxide nemvura kubva mumhepo. Iyo molecular sieve inozobviswa pasi pevacuum mamiriro, kudzokorora yakakwira kuchena okisijeni (90-93%). VPSA ine simba shoma rekushandisa, iro rinoderera nekuwedzera kukura kwechirimwa.
Shanghai LifenGas VPSA okisijeni jenareta anowanikwa mumhando dzakasiyana siyana. Jenareta imwechete inogona kugadzira 100-10,000 Nm³/h yeokisijeni ine 80-93% kuchena. Shanghai LifenGas ine ruzivo rwakakura mukugadzira nekugadzira radial adsorption columns, ichipa hwaro hwakasimba hwezvirimwa zvakakura.