Day by day the fresh air of the environment is getting polluted because of the mixing of particulates, biological molecules, and other harmftul materials. Such polluted air is causing health problems, diseases and death.Air pollution is a most serious problem of the curren time all over the world especially in the large cities because of the huge level of industrialization.The release of gaseous pollutants from burning fuel of motor vehicles, industrial processes, burning of garbage, etc are contributing to the air pollution.All of these pollutants can cause lot of illnesses, like cancer, birth defects, brain and nerve damage, and long-term injury to the brain. According to the research of WHO, seven million people around the world died because of the air contamination effects in 2012.The most polluted country is India. It has the highest mortality rate due to air pollution. Most deaths in India are caused by asthma. Another seriously affected country is China.The most vulnerable population group is children aged less than five years living in developing countries.