I-Aijiren inokubonelela ngeengqayi zokugcina izinto ezahlukeneyo, ezisetyenziselwa uhlalutyo lwamanzi kunye nomhlaba. Olu hlobo logcino lusenokubizwa ngokuba yi-EPA vial, ngokukodwa i-40ml screw cap EPA vial. Umthamo wokugcina we-EPA screw-top bottles yi-20ml-60ml, efana ne-20ml, 30ml, 40ml, kunye ne-60ml.