Abstract: An isotonic Ozone generator is disclosed. A supplementary liquid reservoir with pipeline is connected to the outlet of water-gas mixer with 3-way adapter and a flow meter pump at lower position. The hypertonic solution is accommodated in the liquid reservoir. With precise control of flow meter pump, the hypertonic solution from liquid reservoir is mixing with concentrated Ozone water from water-gas mixer at constant rate and ratio to form ISOTONIC OZONE WATER for directly applying onto internal or external wounds of human bodies for disinfection.