Abstract —On a global scale, air pollution is considered to be one of the leading environmental problems. Energy consumption, fuel burnings, industrial processes, and emissions continue to worsen our current air condition. With the knowledge that titanium dioxide can decompose harmful gases through the process called photocatalysis, an investigation regarding its utilization on concrete bricks to reduce common air pollutants from vehicular emission is pursued by the researchers. Through experimentation, the study aims to know the percentage reduction on the following parameters: carbon monoxide (CO), nitrogen dioxide (NO2), sulfur dioxide (SO2) and lead (Pb). The tests used in accordance to the objective of the study were air test, which is conducted by First Analytical Services and Technical Cooperatives (F.A.S.T laboratories). After the analysis, the data were recorded and tabulated. Graphs were presented to show the differences in percentage reductions. Results of air test showed relative reduction on air pollutants, an average reduction of 77.38 percent on carbon monoxide, 40.48 percent on nitrogen dioxide and 81.43 percent on sulfur dioxide. The Researchers conclude that concrete bricks with titanium dioxide will be able to help reduce air pollution especially on urbanized areas experiencing high vehicular emissions.