Abstract: A bed comprises a support arrangement (1) adapted to provide upper support surfaces for and carry a person lying in the bed through an upper limitation thereof. A suction device is arranged to generate an air flow from the contact surfaces between a person lying in the bed, through the interior of the support arrangement and out thereof for obtaining a ventilation of the bed space under the person and suction of air away from the bed space through the suction device when a person rests in the bed.

Abstract: An apparatus for desks for influencing the exchange of heat between a person sitting at the desk (4) and the ambient air comprises an air stream generating member (8-10, 12, 13) and a heater device (2) arranged to cause air with a temperature differing from the main room air to enter into contact with substantial surface portions of the person's body.

Abstract: A body-supporting device forming the seat (1) and/or the backrest (15) of a chair and adapted to avoid sweating caused by the thermal insulation of the chair includes at least those sections (2) of the exterior surface of the device that form the support surfaces for parts of the body of a person sitting in the chair made of air-permeable material, an internal bag member (6) having air opening (11) to the exterior of the device arranged to communicate with the interior side of the air-permeable sections (2) through holes (7) and a suction device capable of producing a negative air pressure connected to the opening.