Appointment and features of the use of coal filters for exhaust

Kitchen extract can be different. It is based on the principles of its work, as well as on the type of filter used. Some of the popular types of products today are mechanisms without removal into the ventilation shaft, which use coal filters. What are similar elements of structures, what are their principles of work and purpose, what the strengths lie and whether there are deficiencies, find out further.

What is it needed for?

Use of different types of drawing based on air cleaning. The appointment of the coal filter for the kitchen is the purification of air passing through it from unpleasant odors of any type. Externally, it is a round or rectangular cassette in plastic hull. It is less likely to buy products from synthetic material.

These products vary externally. For example, if this is a cartridge type filter, an absorbent is located inside it. When it is textiles, the active substance is impregnation. It is worth noting that products can be combined. This allows you to create an option with a greater degree of air protection from hot steam and poisonous impurities.

The main component of the filter element are the granules of activated carbon or coal powder. This absorbent is distinguished by the ability to absorb and keep various impurities from the air. This is a tool for fine air purification, which is enough for 3-4 months of regular work. It is installed immediately at a fat filter, because first the exhaust cleaning system must get rid of fat particles, and only after that from smells and other contaminants.

Coal filter allows you to make a reliable exhaust design in work, providing a favorable microclimate indoor. In addition, due to the use of the coal cartridge in the exhaust, it is possible to significantly reduce the level of air pollution, it affects the extension of the resource and operation of equipment and interior items. Along with the purification of air, nothing, dust and other microparticles, which are in the air, will not be placed on all the items in the room. This type of cartridges is used for recycling systems, it allows you to improve the efficiency of the exhaust. It may differ density, and in contrast to the fat analogue is a design of a shift type.

Principle of operation

A distinctive feature of the coal filter is the fact that air flowing through the filter element does not leave the room. It not only absorbs, but also keeps inside all the harmful air impurities that enter the air flow filter itself. As a rule, cleaning like a similar method is quite effective. In this case, the physico-mechanical characteristics of such elements may differ, which depends on their type.

For example, per hour of functioning, performance can range from 2500 to 22,500 cubic meters, and the initial aerodynamic resistance varies within 120 pa. This filter works optimally, if the room temperature is not very high. The same applies to moisture: it should not exceed 70%. In addition, the mass of the cartridge itself differs.

The operation of the filter is carried out due to the engine, which supplies air to the exhaust by fan. In this case, the adsorbent (powder or granules) absorbs the harmful impurities of air and loses light ions. As the filter is working, it becomes dense due to contamination. This makes his work ineffective, and therefore requires replacement. Often, a ionizer is used together with such an exhaust system in order to form ozone.

The principle of operation of the combined version is somewhat different. At the first stage, polluted air enters through a dense layer of synthetic textile with coal impregnation. For example, the manufacturer can use viscose as material. In this case, part of the pollution will remain on textiles. In the future, the air will be sent to the cassette with granules, where the second phase of cleaning will be held.

These devices are convenient, since after cleansing the air really will not smell. In order not to doubt the possibilities of filters, it is worth taking care of buying devices with sensors that sign about the need to replace.


To date, coal is used for the manufacture of coal filters:

  • stone;
  • peat;
  • coconut;
  • impregnated.

If we classify products for the purpose, then several applications can be distinguished. For example, some trademarks produce models not only domestic, but industrial purposes. Products are characterized by weight, while the difference between them can exceed 300-400 kg. Professional options are bought to purify air large spaces (for example, in the publication).

In addition, companies are engaged in the production of products for wastewater treatment facilities, as well as absorption of organic contaminants. Depending on this, coal filters may differ not only by the geometric shape. They can be not only flat, but also concave. Last varieties intended for ventilation systems without removal appeared not so long ago.

They are also installed in the kitchen above the stove. The circulation system can be an element of a kitchen decor or a hidden part of the arrangement. In other words, these filters are suitable not only for traditional systems, they are applicable in devices of an embedded type. The position of the panel can be retractable or fixed.

Differences from fat

Regarding the difference between filters It is worth noting that the principle of cleansing between the filter elements is distinguished. For example, fat varieties belong to the class of rough cleaning devices, while coal-based filters cleansing. His task is not to protect the walls of hoods inside. In addition, fat filters for extending the exhaust life are more often washed than replacing.

Coal filters are needed to capture steam impurities, as well as harmful gases. The design of the cartridge at all will not allow you to clean it.


Host and coal filters have a lot of advantages. For example, one of them is the return of purified air at the same room, while other varieties get rid of it due to the ventilation mines. Hoods with coal-based filters perfectly neutralize unpleasant odors arising in the process of cooking (for example, the smell of fish). In this case, these items are simple in replacement when developing its resource.

To replace, you do not need to possess some special skills: It will not require access to a specialist, and there will be very little replacement time. Similar systems are safe, environmentally friendly, harmless to health. Such extracts are better than other models. Other pros and distinctive features include the ease of installation of the ventilation systems themselves with coal cartridges.

As a rule, they are not only comfortable, but also aesthetically attractive. The use of coal filter systems does not need to mask communications. And this provides greater freedom to place furniture in the kitchen when it is planned.

Due to the natural circulation of air, they make the air cleaner, which is especially important for people with weakened immunity.

Coal filters are used in hoods that can be installed anywhere and how convenient home owners. Household appliances, as a rule, not only do not need additional air supply. Often they are characterized by an acceptable cost and ergonomics of the design themselves. If we take into account their wide range of varieties, choose the option, taking into account your taste and budget will not be much difficulty.

Coal filters are universal. In order to buy a cartridge in return used, there is no need to purchase an exceptionally defined product from the manufacturer of the exhaust. Most of these elements are variable and have analogues with the necessary parameters. At the same time, the buyer has the ability to select power. You can not worry when buying: Each filter has a label with information about the drawing type.

Among other advantages of ventilation systems with coal filters, it is worth highlighting the fact that the unpleasant smell will not be annoyed and neighbors, entering the ventilation mine. In addition, such an element is in no way reflects on the temperature background of the room. It is used in systems that do not need to be improved or cooling the temperature to ensure a favorable microclimate. Coal filter – an important component of the hood, although these designs themselves are quite complex.


Despite the mass of positive feedback left on the Internet on the Internet about coal filters, they have and disadvantages. For example, for the operation of recycling hoods based on coal filters, nutrition is needed. This, in turn, leads to an increase in electricity bills. You must not forget that with all its effectiveness, these devices are not able to clean the air from pollution completely 100%.

The resource of cartridges may vary, but all elements of this type need to be replaced and over time reduce air purification efficiency.

A little buy the desired barrier, it is important to learn how to use the hood right. Coal filters are always disposable. No matter how economical work has been the work of the exhaust, they will have to change them anyway, because with time they will cease to cope with their main task.

How to pick up?

Since in most cases, the coal filter is designed for different embodiments of exhaust designs, one element can approach two dozens of exhaust items. Of course, you can go to the store and consult with the seller who will tell you which option is suitable in a specific case. However, it will be useful and familiarization with the basic nuances of selecting the filter element will be. If you do not take care of replaceable cassettes when buying the hood itself, they may not be on sale.

As a rule, on each box with the filter it is indicated for which models of the ventilation systems can be used, whether it is an embedded hood without removal or autonomous retractable technique. Do not assume that coal filters may have time to clean the entire room in the cooking process before the smell will spread all over the apartment or house. In fact, both flowing, and the recycling devices do not differ. The difference in performance is insignificant and is about 15-20%.

The choice of the filter element must be careful. You can not ignore the model of the cassette and where the cartridge should be located, stuff a climber cleaner.

Despite the fact that rag varieties are much cheaper than cassette, their use is not on purpose without taking into account the type of model is a gross disruption of the exhaust. It is worth considering that the performance of devices will decrease.

An interesting nuance is the fact that not all models of extracts without an air duct have a fat barrier. If it is not, the operation of the coal filter will be ineffective, and the service life is short. In this case, the entire load on the disposal of air from pollution will be laid on the only filter element. It will quickly lead to his clog.

Buy preferably filter the same company as the exhaust. This will ensure impeccable device operation and high performance. Choosing a hood, it is worth repelled not only from its design add-ons in the form of highlighting, voice sensors and several modes of operation, but also the availability of replaceable cassettes. Otherwise, you can look for long filters for a long time, but never choose the option you need for efficient operation.


Coal filters can be part of the recirculation set. When they are not included in the package, they are purchased separately and install themselves. In other cases, the installation is produced by replacing the old cartridge new. Install the filter in place will not be much difficult.

Montage technology is pretty simple and consists of several consecutive items:

  • Kitchen hood de-energize, taking out the fork from the power supply.
  • Unpack coal filter. Fix the installation bracket.
  • After that, open the hidden hood door, followed by alternate fat and coal filters.
  • Remove the fat filter and clean it (you can rinse the device).
  • If the fat filter is coal, it is removed from the locks and remove from the exhaust. If the model has 2 coal filters, take both. If the model is equipped with two coal filters, they can be located on both sides of the motor.
  • New cleaner filters set to position. At the same time, it is necessary to ensure that they not only get into their place right, but also were securely fixed by clamps. Cassette should be inserted to the place allotted for it before the appearance of a characteristic click.
  • After their installation, you must put in place and consolidate the fat filter at that very position in which it was removed.
  • Next you need to check the performance of the exhaust, including it in the network.

If no vibration is noted at this stage, the replacement is incorrectly, the filter is poorly fixed or not accepted the right position.

There are cases when filters for specific models do not proceed due to obsolescence of models of the kitchen hoods themselves. If the cassettes are removed from production, some home home are trying to disassemble filters in an attempt to self-replace adsorbent. For these purposes, they reveal the housing through the connecting seam. Extend the service life of a similar filter, if you replace coal fresh in the same form, which was in it initially (granules).

Regarding other manipulations worth noting that wash coal is useless, so it will not be possible to clean the adsorbent. Contaminated powder or granules will not increase its performance. They will not catch poisoning chemicals soaring in the air. In addition, the moisture is the enemy of the adsorbing element. If the filters of a particular type are not on sale, the best solution will be the search for universal varieties.

Such elements are usually suitable for many types of recycling hoods. However, it is necessary to take into account the fact that it is not so easy to buy a high-quality universal filter: in this segment more eliminates than original goods.

Installation is carried out on the principle of replacement. It is usually needed when the noise of the drawing has become more noticeable.

How often change?

The frequency of filter replacement depends on different factors. One of them is the manufacturer’s resource, as well as clogging of the barrier. For example, products of some companies have to change every two months from the beginning of operation. In other cases, the service life of the filter is greater, so it is necessary to replace. For example, ELIKOR and Jet Air products have enough for 5 months, the cleaning device from the Fabrino brand will work correctly for about 4 months.

Affects the service life and intensity of exhaust. When it uses from time to time and shortly, the time to use the cartridge is significantly increased. Few people know that to extend the durability of the device by driving coal and loosening. This is possible if you do not turn off the exhaust simultaneously with the slab after cooking. You need to leave the device turned on at least 5 minutes. So it turns out to destroy the layer of accumulating harmful impurities of gases, which will allow the filter to work for some time.

In addition to all the above, it is necessary to consider that the durability of the coal cassette will depend on the state of the anti-risk element. The cleaner it will, the less dirty particles will fall on the adsorbent. And this means that the structure of coal will be slower. Rinse the anti-risk is easy: after removing it from the hooding, the barrier is placed in the prepared container.

It may be a pure pelvis or a bath, in which the filter is washed through a special solution, detergent and a conventional brush. Sometimes it is hung with boiling water, for greater purification, a mixture of soda with a household soap is used. For greater effect, it is often even soaked for 2-3 hours. Install the antique barrier can be installed only after its complete drying.

What you need to know about manufacturers?

To date, coal filters for hoods without an air duct release different companies. In this case, elements can be calculated for exhaust systems not only built-in, but also wall and angular type. The work of many modern devices is carried out in silent mode. Giving preference to one or another manufacturer, you need to take into account several key factors.

For example, it is important to determine the amount of coal filters in addition to the fat barrier. You need to buy not only running filters: you need to start with the selection of the model of the ventilation system itself. Today, trademarks offer customer use options with cost-effective electricity consumption and fairly effective operation of filters. One or two – each decides for itself. However, if they need to be replaced often, it can affect the budget.

When buying, you need to pay attention to the store reputation. It is important to choose a reliable supplier whose products will work out its resource, as stated by the manufacturer. Fake products, as a rule, does not reach several months of operation, not differing from the efficiency of work.

You need to choose products of a reliable brand, since such brands always take care of their reputation, which is reflected in the quality of each product.

Among the demand for customers, it is worth highlighting several brands:

  • Jet Air – Carbon Filters of the Portuguese manufacturer, featuring an acceptable price segment and high quality and operational characteristics;
  • Elikor – products of the domestic brand, calculated for exhaust and cleansing equipment of private houses, apartments and offices;
  • Elica is the Italian air cleaners of the round and rectangular type of different modifications that are distinguished by the original design and ergonomics designed for Elica hoods and other firms;
  • KRONA – products in the form of a circle and a rectangle of different price categories, designed for 100-130 hours of operation, which is equivalent to 5-6 months of use;
  • CATA – replaceable coal-type cleaners for exhausts operating in recycling mode;
  • Electrolux – Options for various configuration and forms of expensive price category, suitable for different models of exhaust systems.

In addition to these manufacturers, buyers are in demand for product brands Hansa and Gorenje. The first company is rightly considered one of the best in its segment. It supplies products to the market, characterized by convenience and efficiency. The second brand produces embedded and suspension exhaust, offering coal filters to them, perfectly suitable in size models. The company also bet on energy efficiency.

It is impossible to definitely say what the filter model is the best, since the opinions of buyers are ambiguous. Everyone likes your own option. In general, in the rules you can choose the varieties of air purifiers for the systems of the button, sensory and slider control. Good varieties of barriers are considered to be Jet Air products, calculated for six months of use.


Coal filters are considered an effective tool that promotes improving air quality in the kitchen when cooking. According to the comments left on the worldwide web forums, the air barriers of this type eliminate the space from unpleasant odors, but due to the fact that they are distributed through the air very quickly, the complete elimination of odors is not as fast as I would like. Regarding the choice, many noted that buying a high-quality filter needs to choose a certain brand that you can trust. This is due to the fact that often purchased elements work not so efficiently, and little in time.

How to install a carbon filter on the classic Help of Gretta CPB from the Krona brand, see the following video.

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