The Eco E7s Technology has the power to do amazing things with your DD1 Classic MK6. It senses the ambient temperature and humidity level and automatically toggles between the full power, economy powe will reduce your energy bill by as much as 40%. DD1 Classic MK6 has a built-in auto sensor that continually detects your air humidity. It knows when to toggle the dehumidification requirements. This e under control and that you only use your electricity when absolutely necessary according to the mode you have selected. Overdry Protection - Using any dehumidifier at High Modes or Laundry Mode over "over-dry" ambient air. The good news is that the DD1 Classic MK6 knows when to toggle the dehumidification process when the air gets too dry. The DD1 Classic MK6 heating element has been re-design distribution to complement the Auto Toggle feature, increasing its efficiency and life in the process. Built in Ioniser for air purification & Silver Filter that kills bacteria on contact. Water Bu