Background: Harmful effect of air pollution on health has been obviously proven. Although the best way to prevent is being unexposed to it, some jobholders such as police officers, may not be unexposed because of their duties. In this survey, diseases caused by air pollution were discussed at first, and then the prevention methods were categorized. Materials and Methods: In this systematic review, all essays published (1990-2014) in foreign electronic data base such as Scopus, Medline, Embase, Google Scholar, Cochrane Database Systematic Reviews, Proquest and also domestic data base such as Iranmedex, Irandoc, and SID, with combinations of suitable keywords were investigated. Results: In initial search about the air pollution harmful effects on police officers and preventing them, only 93 essays out of 346 were eligible to enter to the survey. Air pollution is the important factor to cause respiratory, cardiovascular, skin and digestive diseases. Individual precautions such as healthy nutrition (containing antioxidant, vitamin D, omega 3, and potassium), exercise, enough sleeping, keeping fit, and giving up smoking were recommended in the studies related to air pollution prevention. Conclusion: Although removing air pollution sources and not being in air polluted areas are foremost ways to prevent air pollution harmful effects, it is not possible in many situations. Managing precautions such as using police officers who have sever disease in clean air areas and putting short shift work in polluted air action days and also making lifestyle changes so as to have healthy nutrition, exercise, keeping fit are simple ways to reduce air pollution long term harms.