Abstract: A portable air filtration system includes a filter housing having an air inlet and an air outlet. The filter housing defines a filtration chamber between the air inlet and the air outlet. The portable air filtration system uses an ionizing mechanism, a filter media, and an electrode to filter air. The ionizing mechanism ionizes particles within the air to a negative charge. The filter media is disposed between the ionizing mechanism and the air outlet for entrapping the particles. The electrode is disposed between the ionizing mechanism and the filter media to establish an electric field. The electric field is established between the ionizing mechanism and the electrode adjacent to the filter media. The electrode is also electrically-connected to ground and to the filter media for dissipating the negative charge of the particles entrapped within the filter media.

Abstract: An air quality system for controlling air quality in a cabin of a vehicle is provided. The air quality system utilizes three air quality sensors for detecting three air quality parameters. A controller is responsive to the air quality sensors. The controller is programmed to determine a current value of the air quality parameters from the air quality sensors and to determine whether the current value of any of the air quality parameters exceeds a predetermined limit. The predetermined limits for the air quality parameters are based on levels indicative of poor air quality for the cabin. The controller is operable between purging and non-purging modes to purge the air from the cabin in the purging mode when the current value of any of the measured air quality parameters exceeds the respective predetermined limit.