Filter unit, used e.g. in air conditioners, comprises filter element containing granular spherical activated charcoal, and filter element containing combination of granular spherical activated charcoal and activated charcoal fibers

摘要

Filter unit comprises a first filter element (2) containing granular spherical activated charcoal as an adsorption material, and a second filter element (3) containing a combination of granular spherical activated charcoal (5) and activated charcoal fibers (6). An independent claim is also included for a device for purifying air and/or preparing air, especially a ventilating system or air conditioner, containing the above filter unit.