The summer heat can be unpredictable, which is why you need a multi-functional cooling unit to match. Bring in this HOMCOM mobile air conditioner which does four jobs in one. It cools, ventilates, dehumidifies and also has a sleep mode. 'Cool' keeps the area at a constant temperature, 'ventilate' controls the speed of the fan, 'dehumidify' dries out the moisture in the air and 'sleep' gradually increases the temperature by 1°C every hour.