This De’Longhi Pinguino Portable Air Conditioner has 12,000 BTU’s for powerful performance. It incorporates an eco-friendly refrigerant gas, R410A, which actually has zero ozone depletion potential and is also denser, allowing for more compact components and units. R410A is a more-efficient refrigerant that allows for better energy-saving technology. And because it’s portable, you can spot cool different rooms as needed, which is a lot more energy-efficient than your central system.