DEVICE FOR THE COMBINED REDUCTION OF CARBON DIOXIDE AND WATER. MOISTURE CONTENT, MOTOR VEHICLE AND METHOD

Device (5) for combined reduction of carbon dioxide and water content in a confined air volume (3), in particular in a passenger compartment of a motor vehicle (1), comprising a first sorption unit (6) for combined sorption of carbon dioxide and water, a second sorption unit (7) for combined sorption of carbon dioxide and water, wherein the first sorption unit (6) and the second sorption unit (7) each contain a plurality of sorbents (8, 9), wherein the sorption units (6, 7) are each switchable from a sorption mode (M1), in which the sorption units (6, 7) sorb carbon dioxide and water from raw air (RO) of the confined air volume (3), into a desorption mode (M2), in which the sorption units (6, 7) desorb carbon dioxide and water to supplied regeneration air (R1), and vice versa, and an air distribution device (19), by means of which the sorption units (6, 7) can be switched alternately, depending on the carbon dioxide and water content in the confined air volume (3), each from the sorption mode (M1) into the desorption mode (M2) and vice versa in such a manner that in at least one operating state of the device (5), one of the two sorption units (6, 7) is in the sorption mode (M1), while the other of the two sorption units (6, 7) is in the desorption mode (M2).