The air pollution in the world is getting worse and worse every year, especially in big cities. According to the latest June 27, 2016, IEA (International Energy Agency) report, 6.5 million death every year are related to air pollution.

The problem with air pollution is it is difficult to see and quantize the threats. Only some pollutant gases can be smelt or seen, but still we cannot determined the concentration of the gas. In many cases, we do not know that we are surrounded with unhealthy air condition. Some air pollutant gases are very toxic and dangerous like Carbon Monoxide (CO) that in high percentage level in the air can kill people within minutes or hours. While other gas pollutants can create problems in the long run if we keep having this pollutants surrounding us. Besides concern to some air pollutant gases, we need to also concern about the Particulate Air Pollution. Particulate air pollution is a mixture of solid, liquid or solid and liquid particles suspended in the air.

Due to the concern of the ability to measure the concentration of the air pollutant gases, we need to find a way to monitor these air pollutant gases, and by knowing these conditions we can determined what we should do next to avoid or reduce these air pollutants. There are several air pollutant monitoring system already provided by the Government, but they are only monitoring the area surrounding them and can only be seen close by. Buying professional gas monitoring devices are very expensive.