Oxygen concentrator shine injin da ke samar da iskar oxygen. Ka'idarsa ta dogara ne akan fasahar rabuwar iska. Na farko, ana matsa iska zuwa babban yawa. Sa'an nan, yin amfani da fa'ida daga wurare daban-daban na abubuwan da suka shafi iska, iskar gas{3}} rabuwar ruwa yana faruwa a takamaiman zafin jiki. A ƙarshe, distillation yana raba iska zuwa oxygen da nitrogen. Domin ana amfani da shi da farko don samar da iskar oxygen, ana kiransa da yawan iskar oxygen. Saboda yawan amfani da iskar oxygen da nitrogen, ana amfani da iskar oxygen a cikin tattalin arzikin ƙasa, musamman a masana'antu kamar ƙarfe, injiniyan sinadarai, man fetur, da tsaro.
Wani nau'in mai tattara iskar oxygen yana amfani da kaddarorin talla na sieves na kwayoyin halitta. Ta hanyar ka'idodin jiki da kuma ƙarfafa ta babban -man gudun hijira - compressor kyauta, nitrogen da oxygen a cikin iska suna rabuwa don samun yawan iskar oxygen. Irin wannan nau'in ƙwayar iskar oxygen yana samar da iskar oxygen da sauri kuma a cikin babban taro, yana sa ya dace da maganin oxygen da kuma kula da lafiya ga kungiyoyi daban-daban. Yana da ƙarancin wutar lantarki, yana kashe cents 18 kawai a cikin sa'a, yana mai da mara tsadar amfani.