An indoor air quality monitoring system.

Abstract

Worldwide, most modern populations tend to spend approximately 90% of their time in different indoor environments. Along with the penetration of outside air pollutants, contaminants are produced in indoor environments due to different activities such as heating, cooling, cooking, and emissions from building products and the materials used. As people spend most of their lives in indoor environments, this has a significant influence on human health and productivity. This research focused on addressing the major gaps that have been existing in maintaining good indoor’ working conditions. This happens through keeping track of the indoor air pollution levels and controlling their concentrations by varying the indoor air flowrate. The system further automatically produces warning signals (sound) for the worst scenarios. The system achieves its functionality through the use of sensors that measures pollutant on centration in an indoor environment and control the pollutant levels using a ventilation fan.