Air filtering device for an air conditioner

An air filtering device for an air conditioner, in particular for filtering particles, preferably pollutants, from air, comprising

• a flow path through which air can flow in a flow direction,
• an ionizer, configured to generate ions in the flow path,
• a grid structure formed from of an electrically conductive material, which is upstream of the ionizer in the flow path in the flow direction, and forms a first electrode,
• a filter downstream of the ionizer in the flow path in the flow direction, the filter comprises that has a layer forming a second electrode, comprising an electrically conductive material or made of an electrically conductive material,
• a high voltage power source comprising an electric pole and an electric counter-pole, for generating a high voltage between 5 kV and 15 kV, between the pole and counter-pole,
• wherein the pole is electrically connected to the ionizer, and the counter-pole is electrically connected to the first and second electrodes
• further comprising a third electrode near the ionizer 3, electrically separated therefrom, the third electrode is electrically connected to the first and second electrodes.