Ionizer electrode needle use

has ionizer that by connecting an electrode needle insert (1) having an electrode needle (3) for generating ions, and a main body block (2) is formed having an air blowing outlet (9), which is constructed so that the electrode needle (3 ) is used (by a Elektrodennadeleinsetzeingang 11) at a rear end portion of the Luftblasauslasses (9) into the air blowing outlet (9) when the electrode needle insert (1) and the basic body block (2) are connected, and the electrode needle (3) from the air blowing outlet (9) is removed when the electrode needle insert (1) and the basic body block (2) are separated, wherein the electrode needle insert (1) has the electrode needle (3) and a high voltage generating device (21) for applying a high voltage to the electrode needle (3) and wherein the main body block (2) has an air passage (12) for the supply of air to the air blowing outlet (9) and a connection opening (13) for cONNECTING s having an air line to the air passage (12).