Cholumikizira okosijeni ndi chipangizo chomwe chimayang'ana mpweya wochokera ku gasi (nthawi zambiri mpweya wozungulira) pochotsa nayitrogeni kuti ipereke mpweya wopangidwa ndi okosijeni.wathu wa okosijeni Mpweya ukhoza kukhala wogwiritsa ntchito kuchipatala kapena kunyumba.