All tumble dryers from the new T1 generation feature energy-efficient heat-pump technology and achieve at least an A++ energy efficiency class. With EcoSpeed, you can tumble dry your laundry even more quickly and with the best energy efficiency class A+++. The reason for this is a new heat-pump unit that also represents a major step forward in terms of resource conservation: An innovative manufacturing process is used for many plastic parts. This saves up to 30% of material during production. In addition, recycled plastics are used – an important contribution to preventing plastic waste. Furthermore, most tumble dryers operate with the natural refrigerant R290, which is completely free from HFCs and therefore minimizes the global warming potential.