Fabrication of Air Purifier Using Ultraviolet Germicidal Irradiation (Uvgi) Light

Abstract

The project titled “Fabrication of Air Purifier Using Ultraviolet Germicidal Irradiation (UVGI) Light” presents the development of a smart air purification and environmental monitoring system integrated with intelligent sensing technologies. The proposed system combines HEPA filtration and UVGI sterilization to remove airborne particulate matter and deactivate harmful microorganisms such as bacteria, viruses, and fungi. An ESP32 microcontroller is used for real-time monitoring and control of environmental parameters including air quality, temperature, humidity, and operational status. A significant feature of the project is the integration of the LDT0-028K Piezoelectric Vibration Sensor for vibration monitoring and predictive maintenance analysis. The sensor continuously detects vibration generated by the BLDC motor and airflow system to identify abnormal operating conditions such as fan imbalance and structural instability. The monitored data is displayed using a 20×4 LCD display for real-time operational analysis. Furthermore, the developed system demonstrates the application of Advanced Manufacturing System (AMS) principles through the integration of intelligent sensing and embedded monitoring. The implementation of the ESP32-based monitoring platform and piezoelectric vibration sensing enables continuous condition monitoring of system components, which is a key requirement in modern smart manufacturing environments. By incorporating automated data collection, operational diagnostics, and predictive maintenance capabilities, the project aligns with the objectives of Advanced Manufacturing Systems, which emphasize enhanced operational efficiency, reliability, process optimization, and intelligent decision-making. The proposed architecture therefore serves as a small-scale demonstration of how smart manufacturing technologies can be applied to environmental management systems