We all understand that our health depends on the kind of water we drink. The liquid that comes out of our faucets is not safe to drink raw. Different methods are used to obtain clean drinking water. One of the devices that is gradually entering our everyday life and provides us with clean drinking water is a cooler. You can buy the best coolers here https://www.eden.com.ua/kulery. The word "cooler" is of foreign origin and is translated from the English language as "to cool".

Many varieties of this device are presented in home appliance stores.

Let's consider what coolers there are, how they differ from each other and what functions they perform.

A cooler is a device for cooling and heating bottled water. Water is supplied to the device from a special bottle with a standard volume of 19 liters.

A device that uses regular tap water instead of a water bottle is called a purifier. Water is purified by filtration. At least five different filters are installed in the purifier:

- coarse filter or sediment filter. It retains sand, rust and other large particles.

- carbon prefilter. It uses activated carbon (absorbent), which retains various impurities and removes chlorine.

– ultrafiltration filter (membrane). It provides neutralization of bacteria and viruses, as well as retains organic substances and the main part of soluble salts.

- charcoal post-filter, which improves the color of water and its taste.

– an ultraviolet lamp that is built directly into the tank and prevents the reproduction of bacteria and viruses.

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The purifier has disadvantages:

– high cost, compared to coolers due to the large size, filtration system and built-in tank;

- in order for the quality of water not to change, it is necessary to observe the terms of operation and replacement of filters;

- it is necessary to have a water pipe with cold water at a distance of no more than 50 meters;

- the need to connect to the electrical network.

There are many models of coolers with different purposes:

– a cooler only for cooling water (the temperature of the cooled water is between 4 and 15°С);

– a cooler only for heating water (the temperature ranges from 85 to 95°C);

– a cooler for simultaneous cooling and heating of water.

In addition, there are coolers with three taps: for hot, warm and cold water.

There is another type of cooler - a dispenser. This device does not cool or heat water, but provides water distribution from a bottle installed on it. This device is ideal for use in schools. The temperature of the water corresponds to the room temperature, therefore, in one case, to quench their thirst after the break, schoolchildren who ran into the school will not drink cold water, and in the other case, they will not get burned.

Models of coolers according to the installation method are desktop and floor models.

For desktop execution, coolers are installed on a separate table intended for them.

Floor coolers have built-in cabinets.

Different models of floor coolers have additional functions.

1. There are models in which a refrigerating chamber can be installed. Such models are convenient for offices, for example, for storing sandwiches, juices, yogurt, dairy products in the refrigerator.

2. ozonator lockers are available. The ozonator treats fruits, vegetables, dishes with ozone. This is necessary in order to prevent the reproduction of bacteria. Such models are mostly intended for home use. If the ozonator is not used, the housewives will find a practical use for the locker.

3. There are models in which the container with water is installed not on top of the cooler, but at the bottom in the cabinet. Such coolers are less bulky.

4. for fans of carbonated water, you can purchase coolers with gas, or in other words they are called saturators. Reusable (rechargeable) five-liter cylinders with food-grade carbon dioxide or disposable ones are used for aeration of water. A reusable cylinder is enough to prepare 200 liters of carbonated water. Disposable ones are enough for 60-80 liters.

There are two types of cooling systems in coolers: compressor and thermoelectric.

The compressor system is the same as in refrigerators.

Advantages of compressors: energy saving, fast water cooling, reliability.

Disadvantages of such a system: high cost, bulk and weight.

Thermoelectric or electronic cooling system.

Advantages: light weight, affordability, inexpensive repair.

Disadvantage: not economical in terms of energy consumption, low productivity (they are not able to provide cold water to more than five people at once), in the absence of sufficient natural ventilation and dustiness of the room, they may fail.

In conclusion, it is worth noting that technology does not stand still and to this day, manufacturers are improving the technical characteristics of coolers, expanding their functionality.