Shanghai Lianfeng Gas Co., Ltd. o se taʻutaʻua gaosi oloa, faʻatau oloa, ma fale gaosi oloa i Saina, e tuʻuina atu Vpsa Oxygen Generation Units ma le 90% mama. O la matou oloa lauiloa ua mamanuina ina ia lelei ma taugofie le gaosia o le okesene mo le tele o mea tau pisinisi. O le matou Vpsa Oxygen Generation Unit e faʻaaogaina le masini Vacuum Pressure Swing Adsorption (VPSA), lea e mafai ai ona vavae ese le okesene mai isi kasa i le ea. O lenei faiga e mafai ona maua ai le okesene ma se tulaga mama e oʻo atu i le 90%, faʻafetaui manaoga faʻapitoa a tatou tagata faʻatau. Faatasi ai ma le tele o tausaga o le poto masani i masini gaosiga o kesi, ua matou faʻamautuina se talaaga mo le tuʻuina atu o Vpsa Oxygen Generation Units faʻalagolago ma tumau. O a matou oloa e faʻaaogaina lautele i alamanuia e pei o le tipiina o uʻamea, gaosiga o tioata, togafitiga o vai otaota, ma isi mea. I le avea ai ma kamupani fa'atuatuaina, matou te fa'amuamua le lelei o oloa ma le fa'amalieina o tagata fa'atau. Matou te tuuto atu i le tuʻuina atu o fofo fou e fetaui ma manaʻoga eseese o matou tagata faʻatau. Fa'afeso'ota'i le Shanghai Lianfeng Gas Co., Ltd. mo au Vpsa Oxygen Generation Unit mana'omia uma.