Iru pataki kan ti irin alagbara irin awo laarin awọn awo irin alagbara, irin alagbara, irin microporous ohun-gbigba paneli. Iru irin alagbara irin yii ni apẹrẹ ti a ṣe nipasẹ awọn micropores lori oju, eyiti o jẹ ohun ọṣọ pupọ.