Clean Release™ technology reaches into skin's cracks and crevices 2X better than regular soap to remove dirt and germs. AT-A-GLANCE™ refills make it obvious when refills need to be changed. "Energy-on-the-refill" technology, every refill has a built-in energy source, designed to last as long as the refill. SANITARY SEALED™ PET refill is easily recycled.