This study investigates the enhancement of the ETRO-02 ozonator's efficiency for surface water purification using a voltage inverter. The main objective is to reduce energy consumption while increasing ozone output through the application of high-frequency electrical corona discharge. The research addresses the growing demand for sustainable water purification technologies amid rising pollution levels. Traditional ozonators often suffer from high energy use and unstable ozone generation, limiting their practical deployment.In this study, a multilevel voltage inverter was introduced to stabilize power delivery and improve ozone production efficiency. Experimental testing was conducted using an ETRO-02 ozonator, standard filtration systems, and a custom-built inverter unit. Key operational parameters, including input/output voltage, inverter frequency, and water properties (temperature, pH, hardness), were evaluated. The results showed ozone output increased by 20–30%, with disinfection efficiency reaching up to 97% at optimal conditions.The findings suggest that integrating a voltage inverter significantly improves energy efficiency and operational stability of ozonator-based systems. This approach offers a cost-effective, environmentally friendly solution for water treatment. Further research is recommended to optimize long-term performance and explore real-time control through automation systems