Motorized vehicles have exhaust gas which is one of the biggest factors causing high levels of air pollution because they contain harmful gases such as CO, CO2, HC and others. The indoor parking area is the area that is exposed to the largest exhaust gas apart from roads. Therefore, it is necessary to detect air quality to determine the level of exhaust gas in the area. In several previous research, some tools were created to detect the levels of these gases, but they tend to be expensive and not flexible. This research presents an Android-based Air Detection Environment System application using WSN technology to detect air quality levels in the parking area with multi-sensors as hardware for air quality detection systems in parking environments. The application designed to successfully detect air quality due to vehicle exhaust gas in the kind of CO, CO2, HC, PM10, temperature and humidity. This multi-sensor technology can send air quality data to the server and display android applications in the form of air quality status, time and location of the incident. The advantages of this application, the public can find out the environmental conditions in the parking lot in practical, real-time and mobile because they only need to open the application on the smartphone. The existence of this application is expected to increase safety and awareness of individuals against the quality of an unhealthy environment.