In order to function properly your equipment needs clean power and ground, which is seldom available in the majority of installations.  This is where OnFILTER' CleanSweep AC filters come in.  CleanSweep family provides unmatched performance in EMI suppression on power lines (both common and differential modes), and, uniquely, in ground.  The filters found home are used by NASA, virtually all major U.S. universities, semiconductor factories, test and metrology, defense, and among audiophiles who found them highly effective in EMI suppression, and in improving sound.