1. Ga irin iskar gas ɗin da aka sha (adsorbate) a cikin kowace sha, ƙarancin zafin jiki, matsin lamba mafi girma da kuma ƙarfin sha mai yawa
2. idan sha ya kasance daidai; in ba haka ba, mafi girman zafin jiki, ƙarancin matsin lamba da ƙaramin ƙarfin sha. Idan zafin bai canza ba, shaye-shaye tare da rage matsin lamba (pumping vacuum) ko ƙarƙashin matsin lamba na yau da kullun ana kiransa shaye-shaye na matsi (PSA) idan shaye-shaye ya kasance a ƙarƙashin matsi.
3. Kamar yadda aka nuna a sama, girman shaƙar iskar oxygen da nitrogen ta hanyar sieve na ƙwayoyin carbon ya bambanta sosai. Ana iya raba nitrogen da oxygen saboda bambancin girman shaƙar iskar oxygen da nitrogen daga iska a ƙarƙashin wani matsin lamba. Lokacin da matsin ya tashi, sieve na ƙwayoyin carbon yana shaƙar iskar oxygen kuma yana samar da nitrogen; lokacin da matsin ya faɗi zuwa al'ada, sieve yana shaƙar iskar oxygen kuma yana sake farfaɗo da nitrogen. Yawanci, mai samar da sinadarin nitrogen na PSA yana da masu shaƙa guda biyu, ɗaya daga cikinsu yana shaƙar iskar oxygen kuma yana samar da nitrogen, ɗayan kuma yana cire iskar oxygen kuma yana sake farfaɗo da nitrogen. Ta wannan hanyar, ana samar da nitrogen akai-akai.