The summer heat can be unpredictable, which is why you need a multi-functional cooling unit to match. Bring in this HOMCOM indoor ac unit to home. It has four modes. 'Cool' keeps the area at a constant temperature, 'ventilate' controls the speed of the fan, 'dehumidify' dries out the moisture in the air, 'auto' setting cool or ventilate mode according to temperate, and 'sleep' gradually increases the temperature every hour.