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Best Extractor Hood Circulating Air 2019 • 0 Extractor Hoods Circulating Air Reviews

What is a cooker hood Recirculating air?

The air in the kitchen is cleaned of odours by an extractor hood. Used air is directed to the outside areas or returned to the kitchen through a filter cleaning system.

Perfectly, it hangs precisely over the stove. Fume hoods today suck in vapours from the cook right next to the stove. They are positioned next to or behind the stove of the worktop.

As a rule, exhaust hood with circulating air as well as exhaust hood with exhaust air with a mounting above the stove the most common application. They bear the designation “Abzug” or “Esse”. Fume extractor hood Recirculating air showed a low volume in externally performed Fume extractor hood Recirculating air Test, than in comparison with Hung hood with Exhaust air.

How does a cooker hood work Recirculation air?

A motor is located in the housing of the cooker hood and drives a fan. This sucks the air with the cooking smells into the hood. One filter or perfectly several filters are used for odour absorption. The cleaned air is returned to the kitchen via an outlet.

In Exhaust air mode the Vapour extraction hood permanently requires new air, which must be supplied via an open window. A practical thing if the connection possibilities of the extractor hood circulating air change when you move house.

Klarstein Zelda - Extractor hood - Extractor hood - Wall hood - Exhaust air Recirculation TestAt Fat filter there are two versions. Disposable filters and washable permanent or permanent filters. Disposable filters are produced from filigree fleece. The air with fat droplets passes through the fleece. The fat is filtered and remains in the tissue as a residue. After saturation, the fleece can no longer absorb fat. It is disposed of in the household waste and replaced with a new fleece.

A washable or permanent filter is made of one or more metal sieves. In this version, air also flows through the sieve and fat droplets are collected. If the grease absorption capacity is exhausted, the metal sieve is removed for cleaning. For the majority of Hung hood with Circulating air the metal screen can get into the dishwasher.

After the grease filter an odour filter for the second cleaning stage is required for a fume hood circulation air. This layer consists of activated carbon.

The activated carbon consists of granules based on carbon. It is produced from different organic substances. The grains of activated carbon have numerous filigree pores.

This gives them a maximum voluminous surface. Numerous chemical substances cling to it, including essences, which are responsible for unpleasant odours. After the absorption capacity of the activated carbon has been exhausted, it must be replaced by a new one.

After the air has passed through the odour filter, it is transported back into the room by means of a fan. the designation Vapour extraction hood Circulating air describes that with this variant the Vapour extraction hood only the air in the kitchen receives a circulation. Fresh air is not supplied.

The fume hood equipment usually also includes the operating elements and built-in lamps for workplace lighting.

Advantages and areas of application

NEG Extractor hood WH603EK (exhaust air circulating air) 60cm Stainless steel wall unit Extractor hood circulating air work with a fermented technique. This ensures reliable operation. They are easy to install and the operation can take place almost anywhere. The only requirement is an outlet required near the site. For example, models that are so flat that they can be shut down are offered in stores.

If this extractor hood is not required at the moment, it can be conveniently pushed back into the drawer. A Humidifier hood Circulating air has no connection to the outdoor area and does not conduct heat into the outdoor area. A positive effect on heating costs is guaranteed. Numerous models are very space-saving and operation can already take place in small fitted kitchens.

As already mentioned, a extractor hood circulating air belongs in every kitchen. Even if the meals taste very good, nobody wants to have the smells in the apartment for long. This fact is more current, the newer and more modern a property is, whose kitchen was integrated into the living space. The cooking island is preferably positioned in the middle of the room. While the cooking experience is certainly brilliant, unfortunately the air in the room underneath is clearly noticeable. An extractor hood is required.

Which cooker hoods are there?

Exhaust hood use the sucked in air in two different ways. With the extractor hood circulating air the room air is sucked in and the grease is filtered out. The air is prepared with the help of a carbon filter.

Amica FH 17161 E flat screen hood stainless steel front [energy class E]This frees the air from unpleasant odours and the clean air is blown back into the room. A Humidifier hood Circulating air can only remove moisture in the air with difficulty. It also has a condensation filter. The water is cooled and collected as in a condensation dryer.

The big advantage of a extractor hood circulating air is the lower cost and installation effort. No separate connection with any exhaust air ducts of the apartment or to the outside wall need humidifier hood circulating air . They can also be attached to unfavourable positions, such as a cooking island in the middle of the room. This means that the complete design format is a little smaller.

The biggest disadvantage of a extractor hood circulating air is the missing connection to the outside air. The standing air in the room is only circulated. The supply of fresh air is excluded.

Bomann DU 670 IX Chimney hoodAn additional fresh air supply is absolutely necessary if the kitchen does not have a window. In winter this can lead to heat loss. Higher maintenance costs are incurred because the activated carbon filter has to be replaced at regular intervals. The activated carbon filter greatly minimizes the circulation capacity. With the activated carbon filter the operation is always a little louder.

A little more expensive and more effective is Fume hood Exhaust air. They suck in the air, filter it through a grease filter and then direct the air through an exhaust hose via the chimney or wall box to the outside area.

However, this hood cannot be mounted everywhere. A circulating air hood is often used for a rented flat or in a cooker location.

Numerous manufacturers offer combination devices. In the trade they are offered as pure exhaust air units. By retrofitting one or two carbon filters you can easily be converted for environmental function. As a rule, the exhaust air opening is closed with a special sheet metal and the air is deflected into the room. These hoods are called hybrid hoods.

All designs (head hoods, table hoods, troughed hoods and substructure hoods are available as circulating air hoods or exhaust hoods.

What types of cooker hoods are available?

Fume extractor hood Circulating air are available in widths of 60 cm, 80 cm and 90 cm. Of course, gives special dimensions for fume extractor hood, e.g. for cooking islands.

Flat shielding hoods

Which types of cooker hoods are test winners offered?These models are integrated into a wall unit. If necessary, the extractor hood can be pulled out. Disadvantage: Precious storage space is lost in a wall unit. Advantageous: Flat canopies are hardly recognizable in the kitchen area. When the cabinet is closed, only the operating panel of the extractor hood is visible. Flat screen hoods are suitable for circulation air and exhaust air. They contain a grease filter with at least a three-stage blower.

Substructure cooker hood

The installation of this variant takes place under a kitchen cabinet and is permanently visible. Many kitchens are equipped with a minimal wall unit above the cooker for mounting a substructure hood. The substructure hood in the height between 11 and 17 cm fits exactly into this kitchen unit.

Suspension hoods

Because of their chimney-shaped appearance, they require sufficient space. They represent a design element in the kitchen. They are suitable both for circulation and for exhaust air. Hygienic stainless steel is used as cladding. However, the height of the wall hood is variable.

Head free hoods

They have not been on the market for many years; they are the result of people who are tall and often hit their heads against the protruding edges of their cooking hoods. Head-free hoods have grease filters directed obliquely upwards. The view of the rear cooking zones is advantageous. In Fume extractor hood Tests a conspicuous design was often noticed. Brushed stainless steel, dark glass or light elements are used as supplements.

island hoods

So-called island hoods are mounted hanging freely above the cooking island. They are the latest inventions since the popularity of cooking islands in open kitchens has increased. They are made of glass or stainless steel and present a curved or angular appearance. Suspended from the ceiling, they have a circulating air– or a exhaust airsystem. An electrical connection must already be taken into account during kitchen planning. Island hoods offer an alternative to wall hoods and provide additional lighting via a cooking island. The variety of shapes is enormous. They are suitable for classic and modern kitchen furnishings. Round, cylindrical and angular formations are offered.

ceiling hoods

They are used in gastronomy and are fastened in drywall construction or in a suspended ceiling. Their pulp captures all the vapours in the kitchen. A remote control is available for the control. The ceiling hoods are operated by circulation air or exhaust air.

This is how cooker hoods were tested circulating air

In a Test Fume extractor hood Circulating air are examined precisely by experts. This not only gives you a real impression of the products via product photos.

  • Mass
  • Technics
  • Fan stages
  • Volume
  • Design
  • Control
  • Energy efficiency
  • Filter types
When Determining the test winner in a Extractor hoods Circulating air Test an important feature is the mass. The extractor hood circulating air should match the kitchen equipment.
Exhaust hoods Circulating air are always used when there is no wall penetration into the exterior of a kitchen. This applies to most rental apartments.
Due to the different fan stages, more or less air is sucked in via the extractor hood circulating air.
What is the noise level during operation? A very enormous volume is particularly annoying in open kitchens.
In addition to the different building forms, glass, metal and plastic are available for selection. Glass shows a special noble effect. Lighting is often installed.
Is the control used manually via pushbuttons, an electronic version or a touch display? Is there a remote control or are additional functions offered?
Does the Fume hood Circulating air work very efficiently?
Which filter types are used? Activated carbon filters, fleece filters and metal filters are available for selection. Non-woven and metal filters have a display of operating hours or a saturation indicator.


What do I have to pay attention to when buying a cooker hood?

Purchase price

Never should the purchase price be the most important and sole feature when buying a extractor hood circulating air. Quality is linked to a certain price. This set applies specifically to Fume hood. Cheap products from unknown manufacturers should be avoided. You should not invest in these devices because they are not effective and they require a lot of energy. Thus the apparent bargain quickly becomes a nuisance.

However, with the labels of well-known producers you take almost no risk. In addition, well-known producers offer a good service. After years, suitable spare parts and accessories will still be offered after the purchase. These include illuminants and filter mats, for example. The Hose-of-fume hood Circulating air is durable and therefore should not be saved here on the price.


The volume of the extractor hood is very important. Perfectly, it should represent a larger volume than the stove and look a little over the edge on three sides so that the fumes are accepted and extracted from the edge of the hob. If the selection of the extractor hood circulating air is too small, it will not work efficiently and most of the fumes will rise upwards unfiltered. The result is disgusting vapor everywhere.


An important characteristic of a purchase is the type of construction. Persons with an above-average body length should choose a head-free hood. These hoods are mounted vertically on the wall and flow obliquely into the upper area.

This allows larger people to work on the stove without constantly bumping their heads.

A ceiling hood is necessary if the stove is in the middle of the kitchen. These devices are called island hoods. A flat screen hood is recommended for retrofitting a kitchen with a extractor hood circulating air. It takes up very little space and can be mounted under the wall cabinet.

Energy consumption & power

Extractor hood head hood energy classAs a rule Exhaust hood Recirculation air are used for a longer period of time. Energy efficiency plays a major role here. Some models only have energy efficiency class E and are true wasters of energy. Economical extractor hoods, however, are awarded the labels a* or A++. The performance of the extractor hood is expressed in cubic meters per hour. This indicates how many cubic metres of air per hour the fan draws through the hood.

The vast majority of extractor hoods circulating air achieve a performance between 200 and 400 cubic meters per hour. With a kitchen size of 4 x 4 x 2.5 m, for example, the volume is 40 cubic metres. The room air surrounds the extractor hood approximately ten times per hour.

The volume of the fan is another feature. The fan in case of loud extractor hood causes a volume of more than 70 dB. It is roughly equivalent to the volume of a vacuum cleaner. One slightly more than 30 dB cause very quiet hoods and comes close to the volume of whispering or light wind.

Design and construction

Exhaust hood Circulating air are available in numerous different shapes and colours. Individual preferences play the most important role here.

In most cases, flat models are used for mounting underneath the wall cabinet, such as the substructure hood. Separately mounted extractor hoods are fixed to the wall or ceiling, such as the wall and island hoods.

Before a extractor hood wall is purchased, the colour, material and kitchen design should be included in the purchase.

The size of the kitchen

When selecting a extractor hood, the size of the kitchen, the existing ventilation system and the position of the hob are decisive.

In order to avoid the deposition of odour and grease particles on the surfaces, permanent air circulation must be ensured. The air saturation is completed faster in smaller kitchens than in voluminous kitchens. Therefore, the size of the kitchen must first be determined.

The volume of the kitchen is determined in the length x width x height and the result is multiplied by the minimum and maximum air exchange rate. The minimum air exchange rate is 6 times per hour, the maximum is 12 times per hour.


  • Volume of the kitchen (length x width x height) 4 m x 3 m x 2.5 m =30 m³
  • 6 air changes per hour 6 x 30 m³ 0 180 m³h
  • 12 air changes per hour 12x 30 m³ 0 360 m³h
  • The required Fume extractor hood must have an extraction capacity of at least 180 m³h and at most 360 m³h.
A Exhaust hood Test confirmed, the selection of a Exhaust hood depends not only on the kitchen size but also on the location of the cooking position and the ventilation system. No combination results in wall or substructure hoods with a cooking island.

Air flow rate

After calculating the kitchen volume, the air performance of the extractor hood circulating air must also be taken into account.

For the calculation of the values it is sufficient to multiply the volume value of the kitchen by 8. The extractor hood circulating air expects easier work in a closed kitchen. This requires about one fifth less power. Air flow is lost due to exhaust air path construction or dirt. The values are to be directed to the settings above the requirements.

Positioning of Fume extractor hood

Klarstein Lumio Primo - Retro Exhaust Hood - Exhaust Hood - Wall Extract Hood - Exhaust Air-Circulated Air Test

Now the Place determination for the attachment of the Extractor hood has come. Not every cooker hood can be mounted everywhere without problems.

If the stove or hob is in a cooking island, the island hood is recommended. The shaft for the ceiling mounting of the extractor hood is located in the middle. In the case of a wall hood, the shaft is fastened at the rear.

An additional possibility for the cooking island is a ceiling hood. The ceiling must be suspended above the cooking island in order to integrate the extractor hood into a flat surface.

After fixing, only the lower part of the grille is visible through the air intake. The suspended ceiling offers the option of integrating minimal recessed spotlights above the cooking island. This provides the work surface with sufficient light.

Klarstein Lumio Primo - Retro Exhaust Hood - Exhaust Hood - Wall Extract Hood - Exhaust Air-Circulating Air

If you prefer a extractor hood recirculation air in a wall cabinet, in fact built-in and flat screen hoods are the better option.

The vapour screen, which absorbs odours and water vapour when cooking, is mostly extendable and protrudes a little while the extractor hood is in operation.

A plastic or metal strip forms the front closure. It is available in various colours and designs.

You can also buy a cooker hood as an alternative to get a panel with a smaller ledge. Apart from a minimal slit between the strip and the wall unit, it is only visible from below.

Extendable installation and flat screen hoods often have a cabling which switches on automatically when the vapour screen is pulled out and switches off again when it is pushed back.

If you do not wish to purchase an additional wall cabinet, the intermediate hood is the most perfect solution. This Housing hood Circulating air is mounted on the wall between the wall units.

The disadvantage of this model is the permanent visibility of the extractor hood. When planning the kitchen, it should be borne in mind that the distance between the hob and the extractor hood should be about 70 cm.


Short information about leading 7 manufacturers

  • Miele
  • Siemens
  • Bosch
  • Neff
  • Gorenje
  • AEG
  • Hanseatic


The German company Miele underlines the accustomed premium quality of its household appliances. The products always impress with their better innovation than the competing products. The company was founded in 1899. Initially, milk centrifuges were produced. This was followed by the Meteor butter machine and the A. pendulum washing machine. Nowadays, extractor hoods supplement the products of the family business. In the product portfolio, exhaust hoods are offered as ceiling fans, wall and island hoods, built-in hoods and as integration behind the hob (Dowandraft system). By the sustainability of its products, the company offers the longest guarantee on all functional parts of its products from all household appliance manufacturers.


As a global company, Siemens can be found in more than 200 countries. The company focuses on resource-saving electrification for the industrial future. At Siemens, household appliances are part of the “For private households” division. The product portfolio includes coffee machines, vacuum cleaners, laundry care, cooling and freezing, ironing, cooking and baking, food preparation and hot water heaters. Fume extractor hoods from Siemens are linked to the cooking zone and are offered externally as ceiling hoods, island meals, substructure hoods, flat screen hoods and fan modules.


Today, Bosch is a global manufacturer of household and kitchen appliances. Founded in 1886, the company is known as a tool manufacturer and supplier to the automotive industry. The company is headquartered in Gerlingen. Fume hoods belong to the cooking and baking sector. Bosch offers intermediate hoods, island hoods, substructure hoods, wall extractor hoods, flat screen hoods and fan modules with an attractive appearance and imaginative features. Bosch's advertising aims to guarantee special insulation and low-noise operation of its fume hood. Bosch and Siemens have been one company since 2015. Nevertheless, the Bosch label remains in place for numerous products.


The Neff company was founded in 1877 at its headquarters in Bretten. The manufacturer of household appliances belongs to the Siemens Group and is a specialist for high-quality appliances. Neff covers everything in the kitchen and the love of cooking. Lovers will find a special section for exclusive cooking appliances. Neff are offered extractor hoods as a built-in hob extractor, as a wall-mounted meal, head-free and as a side extractor for the hob.


The household appliance manufacturer Gorenje is one of the largest manufacturers in this field. The company is headquartered in Slovenia. His products are not only sold under the Gorenje label but also under the Sibir brand in Switzerland. The company produces refrigerators, washing machines, dryers dishwashers, stoves and pantry kitchens. With a Fume extractor hood Circulating air Test 2019, Gorenje's products scored with edge extraction, timer and refresh functions as well as Silder Touch at a low price. Gorenje is very well positioned in the German market and underlines its product lines with the latest trends.


The AEG company was founded in 1883 by Emil Rathenau as an electrical engineering group in Berlin. AEG stoves, ovens, dishwashers, dryers and hobs can be found in the mid-price segment. In Germany, the AEG label is one of the traditional brands. The products have modern equipment and an attractive design. AEG offers fume hoods in all designs. In spite of a voluminous product range nobody has to do without current equipment. For example, AEG offers the Hob2Hood technology. The extractor hood is installed directly in the hob.


The Hanseatic brand was founded more than 60 years ago. Werner Otto has been implementing the slogan of making life easier since 1956. All household appliances and building technology products are state-of-the-art and are distributed in particular by mail order. Fume hoods from Hanseatic comply with the latest equipment criteria. The different designs are available in glass and stainless steel. They make a good combination with different living styles. Hanseatic products have a balanced price-performance ratio.


Internet vs. specialized trade. Where do I buy my cooker hood circulating air best

The selection of Fume extractor hood Circulating air on the Internet is larger than at specialist dealers. The specialised trade is bound to very specific brands.

in Fume extractor hood Circulating air Test 2019 immediately shows the necessary information about the equipment, the performance and the energy consumption of your individual desired product. A comparison of the different manufacturers and their products is easily possible and the specialized trade does not offer these possibilities.

An additional advantage are the actually favourable prices on the Internet. An online shop saves personnel costs, rent for the business premises and receives favourable purchase prices, which are passed on to the buyers online.

After ordering you will receive the delivery within the next few days delivered to your front door. Another plus point, if you don't like the product, you can return it within fourteen days and the purchase price will be refunded. The specialized trade does not offer this possibility. As a gesture of goodwill, the specialist trade may offer a return and they will not receive the purchase price back, but only a credit note for ordering another product.

Things to know and advice

The history of cooker hoods

Exhaust hood are based on the invention of the company Vent-A-Hood. Introduced in the 40s of the last century, the device was called a magic lung and was considered a sensation in the household appliance sector at the time.

The principle resembled a fireplace over an open fireplace. Production in Germany did not take place until the 50s and 60s. Manufacturers of household appliances presented them substructure hood. New technical features followed. Nowadays the quantity of offered is as high as never before. It is not easy to find the right fume hood Circulating air.

For a cooker hood circulating air test noise was already disturbing from 60 dB. Vacuum cleaners achieve 70 dB. A short-term volume that exceeds this limit, for example in a boos, is still tolerated by the overwhelming majority.

The values are measured by six microphones positioned at a distance of one meter from the extractor hood and are subject to a standard. The procedure for determining the background noise was defined in the IEC60704-2-13 standard in 2015. Double the distance to the extractor hood will minimize the volume by 6 dB.

Even today, hoods are controlled by smartphones. The extractor hood is activated as soon as the hob is switched on. With the integrated wireless modules, the airflow is already established before the mist of cooking spreads. A sensor automatically adjusts the amount of steam by means of the automatic extractor hood .

The Neff company also offers Hung hoodwith sensor control. By using it as a pinboard or for storing books or plants, it breaks new ground and the extractor hood becomes an attractive design.

The latest invention of the producers Neff, Siemens and Bora: cooker hood. The lowerable extractor hood is invisible behind the hob at the touch of a button. This eliminates the need for wall mounting or in the kitchen cabinet.

The cooking fumes are captured directly at the hob by the lowerable extractor hood. With a lowerable extractor hood the cooker can be positioned throughout the kitchen.

You have more leeway in kitchen planning and the stove area remains free at the top. A display on the top of the extractor hood circulating air provides control. The filter system includes a metal and activated carbon filter.

So-called table hoods are predestined for circulating air operation. For the integration are not so deep hobs suitable. The distance to the wall should be 30 mm. The hob is supplied with light by LED lighting through the retractable extractor hood.

Some hoods can be retracted completely, others only halfway. For security reasons, the finger should remain the finger on the pusher. An electronic control unit, an intensive stage and an overrun function with automatic switch-off are the equipment features of such extractor hoods. A saturation indicator is installed for the filters. The metal filter is suitable for the dishwasher.

Energy is saved because only half the power of a classic extractor hood is required to extract cooking fumes. The new technology has a high price. For a retractable extractor hood between 400 and 1800 Euro are to be paid.

Figures, data, facts about the cooker hood

You can calculate the perfect performance of an extractor hood if you multiply the size of the kitchen and square meter by six to twelve times the air exchange rate. In addition to the official exhaust performance 30 percent are added and you are on the safe side.

It accumulates in the extractor hood circulating air grease and condensation water. Always provide fresh air through open doors and windows. Exhaust hood With Circulating air there is no danger of negative pressure. Nevertheless, the water vapour produced during cooking should be removed.

The efficiency of Fettfilet is very easy to test. You take a spray bottle and spray the grease filter with water. The more water leaks out on the other side of the grease filter, the better the filter. Noble filters allow only little water to pass through.

Exhaust hoods are divided into efficiency classes A and A+. The maximum energy consumption for all models has been set at 1 watt since 2015.

Since 2017, the energy consumption has been only 0.5 watts.

When cooker hoods are sold, the energy label has been mandatory since 2015. Not only the complete energy consumption is displayed, but also the noise level, the lighting and blower efficiency as well as the grease separation power.

The Hung hood Circulating air works better and more efficiently with the letter “A”. Determine whether you can replace classic incandescent lamps with energy-saving LED lamp replacement when illuminating the extractor hood.

This reduces energy costs. Up to 80 percent of the energy costs incurred are saved by LED technology. When purchasing a extractor hood circulating air, the efficiency in terms of energy and liquid dynamic efficiency must be taken into account. The evaluation of the exhaust air and recirculation air is thus carried out by means of filter.

The energy label shows a three-winged stylized valve gate in a circle. The efficiency of the blower is limited by A-G. A thin horizontal rectangle and three drops below it is the new mark of grease separation efficiency. The more fat is collected, the more effectively the extractor hood circulating air does its job.

When disposing of the extractor hood, the electrical scrap should end up in the recycling yard. You can get more information from your city or local government.

External fans are excluded with circulation air. A gas cooker with circulating air also poses a problem with a gas cooker with more than 11 KW and a Grill Combi Set. These two stove types are not suitable for air circulation. No problem for exhaust air operation. When circulating air operation , shock ventilation after cooking is recommended.

Nevertheless, the following points must still be taken into account so that you can find your suitable extractor hoodn test in a extractor hood>/strong> circulating air.

Fume extractor hood Circulating air ensure effective filtering of fats and odours. However, most of the moisture remains in the air. It is necessary to open the ventilation window wide after cooking. This prevents the moisture from remaining in the room after cooking. This can lead to mould fungus. Particularly in the cold season, ventilation can lead to a drop in room temperature and the escape of heat.

For optimum operation of the odour filter, it is recommended that the extractor hood circulating air be left to run for a further quarter of an hour after cooking. This ensures a proper drying of the filter. At the same time, the remaining vapours in the room are removed by the extractor hood circulating air. The smallest step must be selected for the overrun.

The use of an additional activated carbon filter produces more air resistance in the extractor hood. This could minimize the air flow rate. Depending on the type of device, a more or less strong effect is possible.

A Fume hood Circulating air is suitable if you can confirm the following:

  • You live for rent, in a higher building or you cannot and do not want to make any structural changes for a exhaust airsystem.
  • You are owner of a closed kitchen and a large supply of fresh air is not possible
  • You don't want to dissipate valuable heat outside during the winter months
  • Installation of deep fryer, grill or wok not planned
  • In the kitchen there is not much vapour and therefore you have to accept a lower efficiency

The extractor hood requires a grease filter to remove the fats and oils from the sucked-in cooking fumes. Often, reusable metal filters are used for this purpose. These must be cleaned at regular intervals. The accumulated fats reduce the suction performance and are even a source of fire.

The activated carbon filter absorbs the odours. Activated carbon is a special type of coal and has a high permeable surface. The effect resembles a sponge. Due to the very voluminous surface of the activated carbon, the odours are literally absorbed.

A chemical reaction binds the odour molecules to the coal. This is the reason why the activated carbon filter or odour filter must be changed at regular intervals. At some point the surface is saturated and no additional molecules are bound. The only remedy is a new activated carbon filter.

Filter change for cooker hoods Recirculation air

While metal permanent filters are usually used in Exhaust hoods, activated carbon filters are very often used in Exhaust hoodn Circulating air because metal permanent filters only filter grease from the air. However, if the cleaned air is returned to the room with hood circulation air, an activated carbon filter is required to neutralise the odours from the fumes. These filters have a higher tightness and produce a higher resistance. The performance at the exhaust air is inevitably at the use of minimal.

In addition, the activated carbon wears off. The replacement of the filters depends on the duration round intensity of use. Otherwise the reliable removal of odours from the air is no longer possible.

The filter change depends on the model and the manufacturer of the extractor hood circulating air. However, the principle is generally similar. Fume extractor hood Circulating air have a flap or individual parts located under the extractor hood. The following steps are required to replace the activated carbon filter:

  • Step 1
  • Step 2
  • Step 3
  • Step 4
Step 1: The flap opens and the individual elements are removed. As a rule, a screw or a lock must be loosened. For some models it is sufficient to remove the filters by moving them. The metal grid is slightly raised and pushed in the direction of the wall. Then the grid with the filter is carefully lowered.
Step 2: Activated carbon forms are offered in cassette and fleece form on the market. The filter is removed from the grid and thoroughly cleaned. A grease solvent is used for heavy soiling. The cleaner must be suitable for the respective material.
Step 3: Then the new filter is inserted. When cutting a fleece to size, no waves should occur, as otherwise the performance of the extractor hood will be impaired.
Step 4: After replacing the filter, you can replace the grids at their origin. The filter and the flap must fit tightly! Otherwise, they may fall down during cooking and cause serious kitchen accidents.


Shape and Design

A free-standing cooker with a extractor hood circulating air has no cupboards on the left and right. It is called a wall hood. These wall hoods resemble a fireplace. In most cases, the so-called chimney shaft is made of metal and usually covers the exhaust hose of exhaust air units before it flows into the outside area.

With the extractor hood circulating air this duct is only a pure appearance, so that these do not hang completely freely in the room at the ceiling. Hoods that are located in the corners of a room are called corner hoods. The construction principle is the same as for wall hoods, only they are placed in corners.

When the cooker is integrated into a fitted kitchen, kitchen and wall cupboards are located on both sides of the cooker. In many cases a substructure or flat screen hood is selected. The substructure hood is mounted clearly visible under the specific installation cabinet.

With a flat screen hood only the few centimeters voluminous extendable screen is visible. The complete technology is located in a cabinet hanging above it. Nevertheless, this imitation cannot be used as storage space.

What else is needed for cooker hoods with circulating air?

One Fume extractor hood Circulating air Test showed that most extractor hoods have an additional switchable light. This provides a good view of the hob.

In 8 steps Fume extractor hood Circulating air Mounting

  • Step 1
  • Step 2
  • Step 3
  • Step 4
  • Step 5
  • Step 6
  • Step 7
  • Step 8
Step 1: The exhaust hood and the future placement are measured. Perfectly, the space should be between 60 and 75 cm above the hob. The hood should be more voluminous than the hob to absorb all the haze. As an alternative, they determine the center between two cabinets.
Step 2: The electric circuit in the kitchen is interrupted.
Step 3: Remove the packaging from the new Fume hood Circulating air.
Step 4: Mark the necessary holes for wall mounting. For this purpose, the extractor hood is taken apart if no template is supplied. Another person holds the extractor hood circulating air in the correct position to mark the holes.
Step 5: Drill the holes. Then the fixing hooks are hooked in and the extractor hood is suspended from it.
Step 6: The electrical system of the extractor hood circulating air is connected. There is usually a socket at this height in the kitchen.
Step 7: The power in the kitchen is switched on again and the functions of the extractor hood are checked. tab] Step 2: The power in the kitchen is switched on again and the functions of the extractor hood are checked.
Step 8: Remove the protective film from the surface of the extractor hood. They offer protection from fingerprints.


10 Tips for care

Cleaning the extractor hood circulating air is compulsory at regular intervals. If the cleaning intervals are too long, the deposited grease will resinify in the metal filter and in the interior of the extractor hood. It is very difficult to remove or cannot be removed at all. Mould can occur in carbon filters. The mould spores are blown into the room with the air. This poses a health risk. Depending on the type of operation, the cleaning of a fume hood differs.

Change the activated carbon filter. It keeps back unpleasant odours and follow the manufacturer's instructions and their use. With a extractor hood circulating air you must also clean the metal filter and remove grease from the interior. Use a microfibre cloth to clean the external surfaces.

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  • Step 10
Step 1: The metal filter is released from its anchorage.
Step 2: Position the metal filter vertically in the dishwasher for light soiling. The metal filter is inserted horizontally in the event of heavy soiling. For cleaning, select an intensive program.
Step 3: If the grease filter is cleaned manually, soak the grease filter in warm water and detergent using a brush. If the filter is heavily soiled, then an alkaline cleaner is recommended, which should be applied about 60 minutes before.
Step 4: Only a cloth and a household cleaner are required to clean the housing of the extractor hood circulating air.
Step 5: Enclosures with heavy soiling receive their old shine with a soda solution. This does not apply to aluminium cooker hoods. The surface of aluminium is attacked by soda ash.
Step 6: Grease stored in stainless steel is removed by grease solvent spray. This polish is a special care product for stainless steel. Even fingerprints are lowered by creating a protective film.
Step 7: Brushed stainless steel is wiped off in the ground direction.
Step 8: A glass cleaner is used for fume extractor hoods made of glass.
Step 9: Regenerating and washable activated carbon filters are already available on the market. They can be cleaned with the intensive program of the dishwasher and then dried in the oven.
Step 10: Classic carbon filters cannot be washed. They must be disposed of with household waste.


Useful accessories

As accessories for the extractor hood circulating air fleece, metal and activated carbon filters, which are necessary for the required operation, are offered on the market.

The extractor hood circulating air cleans the air in the room of odours, cooking fumes and grease particles. All side effects occurring during cooking are summarised under the term “vapour”. Today in the household normality, it was considered at the introduction in 1940 as a world novelty.

From the base, hardly anything has changed until today. A extractor hood consists of a housing in which various filters are integrated. An electric blower draws for the extraction of the fumes.

Other components of a extractor hood include the lighting and controls. In the course of the years the suction power and the technical advancement increased, provided for striking values in the consumption, a LED display and a radio remote control.

A craftsman can himself plan the installation of a extractor hood circulating air and realise it with suitable accessories. The wearing parts should also be replaced at regular intervals in order to achieve complete performance. This applies primarily to dirty filters. For assembly, the built-in parts must always be purchased separately, as the conditions of a kitchen are always different.

Accessories for Fume extractor hood Circulation air

For this type the suitable accessories for the professional fastening and the running operation is offered in the trade. During selection, you should ensure that the accessories have been agreed with the manufacturer. Especially with electrical components, the long service life is guaranteed by the quality.

Mounting is much more comfortable with Hung hood with Recirculation technology than with Exhaust airsystem. For operation, only a minimum pipe section is required for the return of the cleaned room air.

In addition, a grease filter consisting of several layers of metal mesh and an activated carbon filter provide fresh air. The filtered vapours are then returned to the room. A heavily soiled metal filter is removed from the side fixings and pre-treated with a grease dissolving spray. If the extractor hood circulating air spreads bad odours instead of clean air in the kitchen, a new odour filter is required.

No cleaning is possible with a spent activated carbon filter. The formation of odours is a chemical process that cannot be changed. The filter cassette must be replaced at regular intervals. However, the connections should fit for a no-name product. The activated carbon filter must always be mounted behind the grease filter.

Today's generation of cooker hoods have an operating hours counter including a flashing indicator light to remind you when a change is due.

For low-cost Hung hood>/strong>n grease filters made of fleece are required. They have to be replaced every month. The absorption capacity is not as high as with a metal grease filter.

10 Questions about cooker hood circulating air

Why is a cooker hood with circulating air usually cheaper than a cooker hood with extract air?

Only for the assembly only few or no expenses are to be estimated. The Hose-of-fume hood Circulating air is simply fastened with screws or wall hooks. This variant also eliminates the exhaust hose and the wall opening.

How often must the activated carbon filter on the cooker hood be replaced with circulating air?

The frequency of replacement depends on the use of the extractor hood circulating air. A change is recommended after approx. 3 to 6 months. The cost of a filter is between 7 and 15 euros.

How do I test a cooker hood Recirculation?

The performance can be easily tested with a spray bottle by spraying the metal filter with water and looking at the back. When minimal or no water leaks out, the filter offers high performance. Good quality grease filters are made of multi-layered and densely knitted wire mesh.

Why is a cooker hood with circulating air necessary?

The water vapour from cooking vapour binds fat particles. The extractor hood absorbs this air, filters the grease and releases the cleaned air back into the room. Without extractor hood the complete grease would spread on the walls and furniture and the pronounced cooking odour would persist for a long time.

What filters are needed?

A metal filter is integrated into each cooker hood and can be re-used after cleaning with a dishwasher or by hand. An activated carbon filter is also required. Before installation, they are gently shaken in order to spread the granulate evenly in the cassette.

What criteria should I consider before purchasing?

The efficiency of the extractor hood circulating air depends on the performance. Volume is another criterion. The construction type and design of the extractor hood circulating air now leaves nothing to be desired.

What happens if the extraction performance of the extractor hood is insufficient?

The charcoal in the active filter is not saturated. The carbon in the activated carbon filter must be replaced. If necessary, you can use a new activated carbon filter.

When should metal filters be replaced?

Over time, metal filters become so clogged that it makes no sense to clean them. Then it's time to replace the filter.

Where can I find the type number or similar numbers for ordering filters?

A type designation or E-number is required for ordering. They are located inside the hood on a label. The filter is removed from the hood, you write down the data and keep it in a safe place.

Is there a difference whether the activated carbon filter was provided with fleece material or a plastic grid?

The side for the application of the fleece is technically unimportant. The cooking fumes must be able to pass through the filter. This is possible with the fleece and also with the plastic grid.

Alternatives to cooker hood circulating air

An alternative is Fume extractor hood with exhaust system and a connection to the outside area. However, retrofitting such a extractor hood is complicated and expensive if this connection has yet to be made. The disadvantage of the exhaust is that in winter the warm air is transported to the outside. The kitchen is cooling down and you need to heat more.

There are also advantages over Recirculation hoods. As a rule, they have a higher exhaust airpower. In addition, it dissipates moisture into the outside area and no additional ventilation is required.

If you are the owner of a property, of course you do not need the consent of another person. As a tenant, it is highly unlikely that you will receive a permit from the owner for extraction hoods with exhaust system.

An additional alternative to the extractor hood circulating air is an elegant and space-saving option: the hob extraction system.

If you have a minimal kitchen for a classic extractor hood with a minimal window or no window at all, there is an alternative.

The powerful hob extraction systems are mounted at the height of the pots or at the height of the worktop. The extraction system is immediately on the hob. It doesn't matter whether you choose the table top hood, the trough fan or the extractor hood with sinking.

A disadvantage of the hob extractors is that they are flush with the worktop. They are particularly susceptible to overboiling liquids, grease splashes and crumbs. The better possibilities are offered by ventilation systems and extractor hoods that can be lowered.

In addition, with hob extraction systems it must be ensured that there is sufficient space available for mounting under the hotplate. The high purchase price of the deduction systems is, after all, the mostly determining negative side.

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