The choice of such a complex device is irreplaceablein the summer, you need to approach it as thoroughly as possible. What should you focus on and how to find the one that will satisfy your desires and needs? First, you need to decide in which room the air conditioner will be located. There are nuances for kitchens and children's rooms, bedrooms and living rooms, offices and spas. For example, you cannot install an air conditioner directly above the workplace or sofa, otherwise you will have to rearrange the furniture so as not to catch a cold. Blinds should always be directed upwards. It should be borne in mind that the air conditioner reduces the level of humidity, so you should not keep it on all the time, even on the hottest day.What is an air conditioner? It is a device,designed to cool the air in the room. Inside, the air conditioner is not such a complex design: its main units are a compressor, a fan, a condenser, an evaporator and a thermostatic valve, all together they form a refrigeration circuit. Gaseous freon first enters the pressure booster and then the substance moves to the radiator. Here condensation occurs, and then the mixture enters the evaporator, where room air is also pumped. And cold air rushes in its place and the temperature in the room drops noticeably. It is important to understand that the air conditioner does not take air from the street, but continuously drives the air that is in the room. To provide the room with fresh oxygen, it is recommended to ventilate the room or use devices to supply it from the street.Which one to choose There are air conditionersfloor, mobile, window, inverter and split systems. The first three, of course, no one will buy now because of their size and noise. Usually, split systems are installed in the room, which consist of two units - street and room, fitting into any interior. The idea can and simply must go further - a multi-system can be made for the entire apartment, tied to one external unit. Examples of such can be found on the website, for example, of the Mitsubishi company, which produces these systems. And together with the remote control and timer, the temperature in the rooms will be regulated with an accuracy of up to a degree, allowing you to set the most comfortable conditions. But when installing such systems, do not forget about supply ventilation and methods of fresh air intake, which was already mentioned earlier.The issue of air purity Air recirculation inroom with its subsequent cooling can have a negative impact on health, so you need to think about the option of constantly saturating the internal atmosphere with air from the street. Constantly opening windows is not a solution if they overlook a noisy avenue or a polluted area. Here a breezer will come to the rescue - a device that provides an influx of purified air with the ability to heat it, and also displaces unpleasant odors. But it does not cool, since it does not have a compressor inside.Power selection Air conditioners differ inpower, which varies within 1-5 kW. At the same time, the minimum is quite capable of providing cool air to a room of 10 square meters. But it is important to understand that there is no scale that would correlate the size of the room and the power of the device. All calculations are made by specialists of the selling company. They take into account not only the area, but also the geometry, the location of windows and furniture, the materials of the walls and ceiling, and much more.Noise level in the bedroom, study or children's roomno one will install too noisy units in the room. But until the air conditioner is turned on in complete silence, its sound level can only be guessed at. If the instructions specify a range of 15-40 dB, then it is quite quiet. External units of split systems and mobile air conditioners are 2-3 times noisier. An important point: you need to specify this characteristic at average or even maximum power, because the manufacturer cunningly focuses only on the lowest intensity.What about the design?You should never choose an air conditioner based on its appearance alone. It may hide a primitive set of functions, while a completely nondescript model suddenly takes a hundred points from the first. White is a classic color for air conditioners, but you can do whatever you want with its appearance if you wish.Price issue This item does not apply tonot only the cost of the air conditioner itself, but also installation services and even payment for electricity in the future. Therefore, when choosing, it is necessary to carefully study the characteristics of the models of interest, the difficulties that may arise during installation, as well as the energy efficiency of the equipment itself (preferably class A, A+, A++) and the values of starting currents. Ideally, for the latter, a value of 1.9 A will be sufficient.Availability of unnecessary options Also air conditionersmay be burdened with a whole set of functions that you will never need. This includes heating, ventilation, automatic selection of a cooling program, ionization, filtration, motion sensors, night mode, and so on. If some options are not needed, why overpay for them? Editorial opinion: - Selecting an air conditioner is not an easy task. Having considered all the above factors, you can formulate certain criteria for yourself, according to which the equipment will be selected. But the main question is how often will you use it?