Abstract: A method of exchanging water-water vapor between a first air stream and a second air stream includes making a third air stream, the flow velocity of which is regulated, flow through first and second intermediate volumes without cooling or heating the third air stream, dehumidifying the first air stream by making the first air stream flow through at least one first cavity which is separated by a first water-vapor-permeable structure from the first intermediate volume, and humidifying the second air stream by making the second air stream flow through at least one second cavity which is separated by a second water-vapor-permeable from the second intermediate volume.

Abstract: A method of cooling a first airstream employs the steps of dehumidifying a second airstream, injecting water into the dehumidified airstream so as to cool the second airstream, and passing the first and the cooled second airstream through a heat exchanger so as to cool the first airstream. In so doing, the condensate recovered during the dehumidification of the second and/or first airstream is used in the injection step.

Abstract: A device for dehumidifying room air has a chamber consisting of at least one first cavity (1) and at least one second cavity (2). The cavities are separated by at least one water-permeable and/or water-vapor-permeable structure (3), these structures (3) lying in each case in the direction of the fluid streams flowing through the cavities (1, 2) of the chamber. In this case, a first air stream (11, 12) which is to be dehumidified flows through the first cavity (1). The second cavity (2), with its second air stream (13, 14), at least partly absorbs the moisture extracted from the first stream.

Abstract: A device for dehumidifying room air has a chamber consisting of at least one first cavity (1) and at least one second cavity (2). The cavities are separated by at least one water-permeable and/or water-vapor-permeable structure (3), these structures (3) lying in each case in the direction of the fluid streams flowing through the cavities (1, 2) of the chamber. In this case, a first air stream (11, 12) which is to be dehumidified flows through the first cavity (1). The second cavity (2), with its second air stream (13, 14), at least partly absorbs the moisture extracted from the first stream.

Abstract: A device for dehumidifying room air has a chamber consisting of at least one first cavity (1) and at least one second cavity (2). The cavities are separated by at least one water-permeable and/or water-vapor-permeable structure (3), these structures (3) lying in each case in the direction of the fluid streams flowing through the cavities (1, 2) of the chamber. In this case, a first air stream (11, 12) which is to be dehumidified flows through the first cavity (1). The second cavity (2), with its second air stream (13, 14), at least partly absorbs the moisture extracted from the first stream.