Corona discharge type ozone generator with portable design. Generation chambers utilizing dehydroxylation quartz glass structure with high safety factor, good stability, unique cooling technology, effective heat dissipation and low working temperature. Power supply unit come with epoxy sealed, the modular design, together with moisture-proof, corrosion-proof, over-voltage protection, power converter thermal protection, high pressure open circuit protection, short circuit protection, high anti-jamming ability, stable continuous performance. Components, connectors and gas piping are antioxidant have ensured the products have longer lifespan, bigger corona discharge area, lower temperature and higher ozone concentration.