| abstract |
Filter device (1, 1 ') for filtering a gas stream laden with aerosols and / or gaseous radioactive iodine, comprising a housing (2) sealed in a fluid-tight manner with at least one raw gas inlet (8), a clean gas outlet (6) and at least one filter medium containing a filter medium ( 3) arranged in the housing (2) such that the gas stream to be filtered passes from the at least one raw gas inlet (8) only through the filter body (3) into the clean gas outlet (6), characterized by at least one tubular body (14 , 14 '), which penetrates the housing (2) from a first piercing cross section (20) to a second piercing cross section (21), which is located above the first piercing cross section (20) viewed in the vertical direction, such that an entire inner space of the tubular body ( 14, 14 ') is in contact exclusively with the ambient fluid surrounding the filter device (1, 1'). |