Hisense 9000Btu Air-Conditioner AS-09CR4SYDTG03 Interior and CA70BT1AW Outdoor Unit are a concentrate of technology that helps you create the ideal climate in the environment where they are installed. Energy-saving thanks to the included 3D inverter and the revolutionary 3-section heat exchanger which reduces annual energy consumption by 30% compared to a conventional air conditioner. The 4 filters are removable and washable.They guarantee excellent air quality, the filters are as follows: vitamin C filter releases air into the vitamin C. Vitamin C penetrates your skin and provides UV protection, keeps oxygen active and promotes collagen production. The catechin filter removes odors and removes dirt and particles in the air and in the room. The HEPA filter effectively removes pollen, grinding dust, tyres to ensure you have fresh and healthy air. Be in your room as you add your favorite fragrance to the aroma filter. The following are the main features of the Hisense Easy Smart: New environmentally friendly gas R-32 display LED heating at low temperatures sleep function: sleep is essential for our organism and a comfortable rest brings us good for our health.