Babban abubuwan da ke cikin iska sune nitrogen da oxygen, ta yin amfani da yanayin zafin jiki, nitrogen da oxygen a cikin iska a cikin zeolite molecular sieve (ZMS) adsorption aikin ya bambanta (oxygen na iya wucewa da nitrogen adsorption), tsara tsarin da ya dace, da yin nitrogen. da kuma rabuwar oxygen don samun oxygen.