The Crystal Wash affects the pH level of the water to make turn it into hydrogen peroxide to disinfect your clothes.
The hydrogen peroxide kills bacteria and odors. The balanced pH levels also allow the dirt and soils in the laundry to be soaked free naturally and easier. After using the crystal wash for 30 loads or so you will need to recharge it by leaving it in the sun. In case you forget to recharge the crystal wash 2.0 there is a pH sensing chip that can warn you via bluetooth directly on your smartphone when it's time to recharge. It can also help let you know when your wash is complete so you don't have to keep checking on the machine.