The GREE 1 Ton Inverter AC comes with a rotary compressor that uses DC Inverter technology which is designed to deliver efficient cooling while saving energy. This air conditioner features 4-way auto swing that allows you to enjoy uniform cooling in every corner of the room. The GREE AC also features Gold Fin condenser that provides durability and resists corrosion. This GREE AC has a dust filter that protects the AC from dust particles present in the air and keeps the AC clean. The self-cleaning function prevents the growth of bacteria and mold inside the AC. The GREE AC comes with a 4-star energy rating.