Nowadays, air pollution in Malaysia becoming serious and worse and it caused by both natural and man-made sources. The government very worries about this issue because it can affect many things such as the economics of the country, the health of people, and causes diseases. There must be ways to prevent this issue before becoming dangerously like reduce using a vehicle. This paper, however, reviews the effects and causes of air pollution on health in Malaysia. The review was based on previous published studies in different sources and approaches. As a conclusion, the air pollution comes mainly from land transportation, industrial emissions, and open burning sources. Among them, land transportation contributes the most to air pollution. These sources have a negative effects and causes not only to the nature but it also to the human. Therefore, a particular attention should be paid by the government to this issue in order to minimize the effects and avoid the causes on health.