Fa'ailoaina o le PSA Working Principle, o se oloa fou na fuafuaina ma gaosia e Shanghai Lianfeng Gas Co., Ltd., o se ta'ita'i fa'atau oloa ma falegaosimea e fa'avae i Saina. O lenei tekonolosi fa'aonaponei e fa'aogaina ai le Pressure Swing Adsorption (PSA) e tu'u'ese'ese, fa'amamā, ma teu ai kasa eseese e pei o le nitrogen, okesene, hydrogen, ma le carbon dioxide. E ala i le fa'aogaina o le PSA Working Principle, e mafai e alamanuia ona gaosia lelei kasa maualuga-mama mo le tele o fa'aoga, e aofia ai fa'afoma'i, alamanuia, ma le siosiomaga. Shanghai Lianfeng Gas Co., Ltd. fa'amaualuga ia lava i le tu'uina atu o fofo fa'amavaega fa'atuatuaina ma lelei e fetaui ma mana'oga faigata o pisinisi eseese. Faatasi ai ma se tautinoga i le tulaga lelei ma le maualuga, o loʻo taumafai pea le matou vaega o tagata tomai faapitoa e faʻaleleia ma faʻafouina le PSA Working Principle ina ia mautinoa le faʻatinoina lelei ma le faʻamalieina o tagata faʻatau. Auai i vaega o tagata fa'amalieina fa'atau oe ua maua fa'amanuiaga o le PSA Working Principle ma fa'atuatuaina Shanghai Lianfeng Gas Co., Ltd. e avea ma au paaga e sili ona fiafia i ai mo au kesi uma e mana'omia.