Air pollution has become a major environmental and public health concern due to rapid industrialization, urbanization, and increasing vehicular emissions. Poor air quality can lead to severe health issues such as respiratory diseases, cardiovascular problems, and reduced life expectancy. To address this issue, this project presents an Internet of Things (IoT)-based air quality monitoring system that continuously measures and analyzes environmental parameters in real time. The proposed system uses various sensors to detect air pollutants such as carbon monoxide (CO), carbon dioxide (CO?), particulate matter (PM2.5/PM10), temperature, and humidity. These sensors are interfaced with a microcontroller, which collects and processes the data. The processed information is transmitted to a cloud platform using wireless communication technologies such as Wi-Fi or GSM. Users can monitor air quality levels remotely through a web dashboard or mobile application, enabling timely awareness and decision-making. This system aims to provide a low-cost, portable, and scalable solution for continuous air quality monitoring in urban and rural areas. By providing real-time data and historical analysis, the system can assist government agencies, researchers, and individuals in identifying pollution sources and taking preventive measures. The proposed IoT-based solution enhances environmental monitoring efficiency and contributes to creating a healthier and safer living environment.