Abstract: The invention relates to a ventilation device (1) adapted to control the airflow paths of a first (3) and a second (5) airflow to alternately flow to or from a first and a second heat-absorbing body in order to achieve a heat transfer between the two airflows. The device comprises a first airflow channel (7) adapted to be connected with and lead an airflow to or from the first heat-absorbing body and a second airflow channel (13) adapted to be connected with and lead an airflow to or from the second heat-absorbing body.

Abstract: The application relates to a ventilation device adapted to alternately direct a first (3) and a second (5) airflow to a first (7) and a second (9) heat-absorbing body in order to achieve a heat transfer between the two airflows. The device comprises a first (11) and a second (13) integral connection element adapted to allow communication with the first and the secondheat-absorbing body, and a third (15) and a fourth (17) integral connection element adapted to allow conduction of the first and the second airflow to and/or from the device. The device further comprises an airflow control arrangement (19) connected with the integral connection elements via control arrangement openings and adapted to alternately direct the airflows to the respective integral connection elements.