OZONE DISINFECTION AND AIR QUALITY CONTROL SYSTEM CIRCUIT DESIGN We designed a project that maintains balance by utilizing the odor-eliminating properties of ozone gas against harmful gases without endangering human health during use, while also continuously monitoring the air quality of the current environment with an automatic control system and producing ozone when needed. In line with the objectives defined in the project content, an ozone generator for ozone gas production and an ozone gas sensor to measure the amount of gas produced have been specified, as well as a carbon dioxide and temperature-humidity sensor for measuring air quality. In addition, an RFID sensor has been used for shift tracking of personnel responsible for the environment. After selecting the components to be used, the connection schematic with the ESP32 C3 microcontroller was designed as shown in Figure 1. Figure 1: Circuit Schematic Design After drawing the connection diagram of the components, the PCB des...