SYSTEM FOR PRESSURIZING THE INSIDE SPACE OF A BUILDING, E.G. THE STAIRWAY OF AN APARTMENT BLOCK, IN A FIRE SCENARIO

摘要

System for pressurizing the inside space of a building, e.g. the stairway of an apartment block, in a fire scenario as well as for removing smoke from the relevant space, which system comprises a fan (8) for pressurizing as well as one or more louvers (2) for removing smoke. The invention is implemented such that the system comprises an appliance that is in connection with the outdoor air, which appliance comprises an air duct (4), a fan (8) arranged in the air duct and one or more openable and closable louvers (2) between the air duct (4) and the outdoor air.