This project involves the development of a portable, real-time air quality monitoring system designed to empower individuals and communities with access to local environmental data. Utilizing a combination of gas sensors (for detecting pollutants like CO, NO₂, and VOCs), temperature and humidity modules, and a Wi-Fi-enabled microcontroller (e.g., NodeMCU), the device measures and displays the Air Quality Index (AQI) on a compact OLED screen.