Abstract: The present invention is a brush for a vacuum cleaner comprising a disc designed to mount brush to vacuum cleaner characterized in that the brush disc (10) is equipped with the permanent magnet (9), facing one of its magnetic poles in the vacuum cleaner direction. Furthermore, the invention comprises the brush attaching assembly, especially the rotary brush of the vacuum cleaner, characterized in that it is equipped with the permanent magnet (9) facing one of its magnetic poles in the brush direction and a vacuum cleaner which is equipped with the described brush attaching assembly.