COOL & COMFORTABLE Stay cool and comfortable this summer with the Symphony DIET22i Evaporative Air Cooler. The DIET22i is a powerful air cooler, humidifier and air cleaner that does not require any venting or installation. It's perfect for well ventilated small to medium sized rooms or as personal cooler. This portable air cooler delivers impressive spot cooling performance that works straight from the box. COOLING TECHNOLOGY The beauty of the DIET22i air cooler is that it generates a steady stream of cold air through evaporation. It works by pulling warm air into the back of the machine through the iPure 5 stage filter system. The air is then passed through an enhanced honeycomb filter which is wet with water from the tank. The water evaporates and is pushed out of the front of the machine by a fan to create a soothing cool breeze. This also conditions the air with more moisture for added comfort. EASY TO USE The DIET22i is incredibly easy to use. All you have to do is fill the large 22 litre water tank with water, or if you want an even cooler breeze you can fill the tank with ice. Once you have filled the tank all you have to do is turn the machine on, choose which of the 3 fan speeds you want the machine to run using and the cooler will deliver an even level of cooling.