Filter assembly for ventilation systems, decentralized living space ventilation system comprising a filter assembly of this type and ventilation unit

A ventilation unit, comprising:

• an air duct designed for installation in an external wall of a building with an essentially horizontal extent, at least one reversible ventilation means arranged in the air duct, and at least one heat reservoir element arranged in the air duct,
• wherein at least one electrostatic precipitator is also arranged in the air duct,
• wherein the at least one heat reservoir element and an electrostatic precipitator are interleaved in one another such that the axial extent of the at least one electrostatic precipitator which is interleaved with the at least one heat reservoir element is smaller than the sum of axial extents of a correspondingly powerful separate electrostatic precipitator and axial extents of one or more correspondingly powerful separate heat reservoir elements.

A filter assembly for a ventilation system, comprising:

• an air duct having an electrostatic precipitator through which an airstream which is to be purified is made to flow and which extends over a predefined section of the air duct,
• wherein at least one heat reservoir element against which the airstream flows is provided in the predefined electrostatic precipitator of the air duct,
• wherein the at least one heat reservoir element is embodied in a comb-like fashion, wherein individual teeth of the at least one comb-like element preferably project into intermediate spaces between collector electrodes of the electrostatic precipitator.