Fine dust particles are becoming an ever greater environmental, health and social issue in many Asian countries. This portable air quality monitoring device satisfies the customer's needs by measuring real-time fine dust, temperature, and humidity, and providing a comprehensive air quality report to the user. When the air quality is poor, the device warns the user via lighting, display and app, and automatically activates the air purifier. The exterior design of the product features rounded edges for easier holding, and the large user-friendly button at the top of the device allows for quick and accurate indoor or outdoor air quality measurement at all times.