5 in 1 Devola Air Conditioners are powerful, efficient and are great cooling solutions for creating a comfortable atmosphere in your space. They feature fan-only, ventilation and dehumidifying functions for circulating air and the removal of moisture. SLEEP MODE: Using a quieter speed, in cooling mode this air conditioner will gradually shut itself down hour by hour meaning you will get an undisturbed sleep. MULTIFUNCTIONAL: 4 in 1 air conditioner it offers cooling, fan-only mode, dehumidifying, sleep mode, to be able to provide your space with exactly what you need.