Anti -interference mode filter

The utility model discloses an anti -interference mode filter, which comprises a housin, the left end of casing is provided with input port, the right -hand member of casing is provided with output port, just the inside of casing is provided with vacuum switch, first syntonizer, second syntonizer and third syntonizer, input port and vacuum switch's input connection of electric lines, vacuum switch's the output and the input connection of electric lines of first syntonizer, the output of first syntonizer and the input connection of electric lines of second syntonizer, the output of second syntonizer and the input connection of electric lines of third syntonizer, the output and the output port connection of electric lines of third syntonizer, just the side of casing is provided with vacuum switch control button, just the side of casing is provided with the heat dissipation window, the bottom of casing is provided with vacuum chuck. The utility model discloses beneficial effect: it can not caused damage, effectu