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Particulate control in car ventilation systems using electrically-charged synthetic filter media are becoming more popular. Adsorption units and low-temperature catalytic systems have been used to control odors and some chemical contaminants in top-of-the-line automobiles. This is a review analyzing these systems, the contaminants found in vehicle environments, and filtration theory. A detailed discussion of experimental work concentrates on overall and fractional filter efficiency and increase in pressure drop with dust loading of charged and uncharged filter media at high aerosol velocity. SAE fine and two natural polydisperse dusts with particles smaller than 5 and 10 μm were used for testing. The health and comfort of car occupants depend on several factors, including air quality. Currently, several car manufacturers offer filtration systems for car interior air.