Cleaning the air in the car cabin

The Volvo company in its cars has introduced an innovative system of air cleaning in the cabin, which allows to retain 95% of harmful PM 2.5 pollutants. Such high efficiency is due to the ionization of the air flowing inside the car.

The air falling into the cabin passes through an element which gives the suspended dust a negative electrostatic charge. On the other hand, the cabin filter has a positive charge and thus attracts electrified particles. In this way, PM 2.5 particles can be caught, which otherwise could pass through common cabin filters.

Volvo draws air into the cabin through four vents located on the dashboard. Each of them uses a metal ring with a needle in the center. Ionization takes place using a voltage of 7000V, and the electrified particles go to the cabin filter with the opposite electrostatic charge. Additionally, users can track the concentration of PM2.5 dust on the center display.