Ion Detox Foot Spa Replacement ArrayReplacement arrays for Ion Detox Foot Spa Machine The Ionic Detox system produces positive and negative ions in the foot bath water. It produces a low current, low voltage signal and sends it through the array submerged in the foot bath water. The current in the array creates ionization through a process known as electrolysis. Toxins that are stored in the body often fall into the biomolecule species of free radicals. A free radical is a molecule that