DESIGN AND DEVELOPMENT OF AN IOT-ENABLED SMART AIR-PURIFYING AND MONITORING MASK FOR HAZARDOUS INDUSTRIAL ENVIRONMENTS

Air pollution continues to pose severe health risks, particularly for workers in hazardous industrial environments such as recycled plastic manufacturing units and coal mines. Prolonged exposure to harmful gases and particulate matter (PM) in such settings can lead to chronic respiratory issues, cardiovascular diseases, and other health complications. To address this challenge, this paper presents the design and development of a compact, wearable, smart air purifying and monitoring mask tailored for industrial workers operating in extreme air quality conditions. The proposed device integrates multiple gas and environmental sensors, a HEPA filtration system, and real-time data communication using an iot-based framework.The system incorporates MQ135 and MQ9 gas sensors to detect harmful gases such as carbon monoxide (CO), ammonia (NH), and benzene derivatives, along with a DHT11 sensor to monitor temperature and humidity.