ARCHIVES

Air pollution and increasing energy demand have become significant challenges in modern urban environments, necessitating sustainable and energy-efficient solutions. This paper presents a Smart Air Purification System Powered by Footstep Energy Generation, which integrates renewable energy harvesting with intelligent environmental monitoring. The proposed system employs piezoelectric sensors embedded beneath pedestrian walkways to convert mechanical energy generated from human footsteps into electrical energy. The harvested energy is rectified, regulated, and stored in a rechargeable energy storage unit to power the entire system without relying solely on conventional electricity. An MQ135 air quality sensor continuously monitors the concentration of harmful gases and pollutants, while a microcontroller processes the sensor data and automatically controls a DC fan equipped with an activated carbon filter for air purification. LED indicators provide real-time visual feedback regarding air quality conditions. The integration of energy harvesting, automated air quality monitoring, and purification into a single platform enhances energy efficiency, reduces environmental impact, and supports sustainable smart city infrastructure. Experimental implementation demonstrates the feasibility of utilizing low-power renewable energy generated from human movement to operate an intelligent air purification system effectively. The proposed model offers a cost-effective, eco-friendly, and scalable solution suitable for deployment in high-footfall public locations such as railway stations, shopping malls, airports, educational institutions, and metro stations.