>1kg/h is called large ozone generator. The large ozone generators use glass and non-glass discharge medium technology, capacitive load ozone generator dedicated high power IF(intermediate frequency) inverter power supply technology. Ozone generator, feed gas equipment, contact reaction device, tail gas treatment device, instrument and control device, etc. are combined into an ozone generator system. Ozone equipment has been used in the fields of municipal water supply, municipal sewage, industrial wastewater, flue gas denitrification, chemical oxidation, food and beverage disinfection and medical therapy, etc.