Air pollution is now called an invisible killer of not just infants and small children but also the fetuses that are in the wombs of their mothers. Air pollution is a pressing issue worldwide in the recent era as the industrial and population growth has forced the use of fossil fuels more than ever. The burning of fossil fuels emits air pollutants such as Carbon Oxides (Cox), Nitrogen oxides (NOx), Sulfur Oxides (SO), lead, ozone, and Volatile organic compounds. These air pollutants are not emitted only in gaseous form but also in the form of particulate matter which are even more fatal for the humans. Among the most affected groups due to air pollution, children and infants are among the most vulnerable groups because of their limited capacities to fight against these pollutants. The recent studies in this field also highlight that not just children and infants, the fetuses inside the mother are also equally vulnerable to be affected by air pollution. The mechanism of action is ...