The hood in the kitchen is buzzing what to do. How noisy is the kitchen hood, and is it possible to reduce the noise level

12.06.2019

The ventilation system plays an important role in creating a comfortable microclimate in our homes. But the mistakes and miscalculations made during the creation ventilation system, the use of not the most suitable equipment and materials, makes the ventilation in our apartments a source of noise exposure, causing serious discomfort. That is why the correct calculation of noise from ventilation is so important at the stages of system design and selection of optimal equipment. The reasons for the appearance of sounds in the ventilation system and measures to combat them will be covered in this publication.

The main "producers" of noise

If the channel has a rectangular section, then in the same way it is possible to install the GTP silencer and the desired section. This type of silencer is made of a galvanized steel outer shell and a perforated inner shell, the space between which is filled with sound-absorbing material. By installing this device in an air duct, it is possible to significantly reduce aerodynamic noise, the sounds of operating equipment, as well as the noise transmitted by the movement of air through the air duct.

You can dampen the vibration ventilation duct(if it is metal) using anti-vibration materials, wrapping them around the air duct at the inlet to your apartment.

Expert opinion

Ask an expert

For any work on the ventilation system, contact management company with an appropriate statement and description of the problem. The thing is that the ventilation duct is not the property of the owner of the apartment, and so that the relevant authorities do not have questions, an application for work to eliminate unpleasant sounds must be present.

Question:
How to reduce ventilation noise in the wind?

Answer:
The wind, getting into the ventilation system at high speed, can create a fairly strong rumble. Reduce its speed - reduce the sound pressure on the walls of the duct. This can be done by installing a silencer in the upper part of the exhaust pipe. It will reduce the speed of air movement in the exhaust duct and, accordingly, significantly reduce the noise that accompanies it.

You can try to dampen the resonant vibrations of the duct by creating a concrete frame around it in a free area of \u200b\u200bthe attic or roof. If the frame cannot be made for technical reasons, then you can simply wrap the duct with mineral wool insulation, 50 mm thick.

Question:
How to deal with street sounds penetrating into the ventilation system through the air ducts?

Answer:
Street noise, like any other sound, is sound vibrations at a certain frequency. These vibrations can be reflected or absorbed. The easiest way to absorb noise is to install a silencer. Since the source of sounds is located outside the ventilation system, it must be installed in the inlet of the supply duct. If the sounds of the street propagate through the exhaust duct, then it must be placed at the top of the exhaust pipe. To reflect the sound, you can put an anemostat suitable for the cross section instead of the ventilation grill. From the outer plate of the device, the sound will be reflected and the room will become much quieter. You can also adjust the air distribution with an anemostat.

Important!
When using an anemostat, you should be aware that they differ in purpose. There are both supply and exhaust devices.

We hope that in this publication you will find answers to your questions related to noise from the ventilation system.

All the problems of air purification in the kitchen today are solved with the help of a specialized household appliances- different. They have significant differences in design and basic technical specifications, but one of the selection criteria is low level sound impact. Can the device work silently? Consider what quiet hoods for the kitchen the market offers, and what is the principle of their work.

Each user knows that during operation, exhaust systems create a certain noise, since the electric motor is running, the fan is rotating: absolutely silent such units have not yet been invented.

There are several main parameters that affect the creation of noise by the exhaust system:

performance- the main parameter showing how many cubic meters of air the hood passes through the entire structure during an hour of operation;
the volume of the room where the kitchen is located - the larger it is, the higher the performance should be;
depends on the size of the room.

As we can see, all these parameters are related to each other, they can be calculated using a simple formula - we multiply the height and area of \u200b\u200bthe room by 12. That is how many times per hour, according to all Russian standards, the air must be completely updated during cooking.

Often, the greater the power and performance of the device, the higher the level of noise generated by it.

If you plan to remove polluted air from the room, then the result must be multiplied by a factor of 1.3 - it takes into account the length of a standard duct, the depth of the shaft, the number of storeys of the building.

For example, you live in a standard five-story house: the kitchen area is only 6 square meters. m., ceiling height 2.25 m and you choose. Then we get 6 x 2.25 x 12 x 1.3 = 210.6 m 3 / h - you need an extractor hood with a capacity of at least 250 cubic meters. m in. If you install, the result will be 162 m 3 / h.

Many users will ask - why do we need these calculations? They are made in order to choose an acceptable exhaust system for your kitchen. When purchasing a hood, be guided by the desired performance and the noise level produced at the same time.

You need to know that, its performance is taken with some margin in order to ensure normal circulation.

The conclusion here is quite simple: in practice, absolutely silent kitchen hoods do not exist. The whole trick of the manufacturers is how to minimize the noise emitted during operation.

Noise level standards

Manufacturers strive to ensure that silent hoods appear on sale as soon as possible, and users are happy to install them in their kitchen. There are already specific developments in this area. For example, quiet fans are being developed with unique engines: the noise from the operation of such an electric motor is practically not perceived by the human ear.

We are constantly surrounded by different sounds, and in order to orient ourselves a little, we will give the power of the noises that are often encountered in our life:

Whisper at a distance of 1 m = 20 dB.
The rumble of voices in the auditorium of the theater is no more than 30dB. This noise is considered the maximum norm at night in a high-rise building.
Quiet conversation up to 40 dB. Limiting daily allowance for residential premises.
Conversation in raised tones - 60 dB, maximum allowable rate for the European office system.
Noise impact from a brass band in a city park at a distance of one meter - 70 dB.
The sound of the movement of a heavy vehicle - 80 dB.
A working perforator in a room creates noise up to 90 dB.
Peals of thunder, a maximum of 100 dB, experts say - this is the maximum volume allowed for high-end headphones.
A working jackhammer generates a noise impact of 120 dB.

The pain threshold for a normal person is in the range of 120-140 dB, and the noise from the operation of an ordinary kitchen hood is only 55-65 dB. Given that it does not work all the time, there is no particular impact on the hearing organs of people living in the apartment.

Hood noise level

When buying, you need to ask not only the power and performance of the system, but also what sound effect it has on top speed. This information can be found in the enclosed operating instructions. Many manufacturers make hood housings from sound-absorbing materials, which decently reduces the sound impact to acceptable decibels.

The human factor also plays a huge role here: for one, a sound of 55 dB is considered the norm, while for another family member it will be comparable to a toothache.

To choose for the kitchen, if not silent, but the quietest hood, it is enough to follow very simple rules:

Never buy a larger hood.
Try to choose a model whose maximum noise does not exceed 44 dB.
Take the model only with the operating mode regulator. From experience, it will rarely work at maximum modes.

All types Maintenance do it in a timely manner, especially filter cleaning and the entire duct. When they become clogged, the sound effect is greatly increased.

Innovative developments

great design, good power and performance - this is what modern, quietest hoods can surprise any hostess with. Such an acquisition allows you to watch your favorite TV shows or music programs while cooking, talk to a friend on the phone. When there are small children in the house, you can cook while they sleep - fidgets will not interfere in the process, and the operation of the hood will not interfere with their light sleep. Such hoods can be installed indoors, when the kitchen and living room are combined into one.

The NRS proprietary noise reduction system from the Italian company Falmec impresses with its technology and flawless assembly. Kitchen hoods of the new series emit more than 85% less noise during operation than analogues from other manufacturers. The company's engineers did the almost impossible: they increased the efficiency of operation, reduced energy consumption.

Noise Reduction System (NRS)

The company constantly cooperates with laboratories where the dynamics of the air flow is studied. The entire extraction process, the movement of the air flow inside the structure, was modeled using innovative computer software. With the help of improvements, various resistances in the path of movement were eliminated, which create extraneous noise during the operation of the hood.

In the production of the hull and main parts, we used sound-absorbing materials, so today, users who have installed such exhaust systems in the kitchen enjoy absolute comfort.

The designers applied several new, very curious and non-standard solutions:

located at the maximum distance from the air intake housing;
fairly thick body walls special material do not enter into resonance from the sound, but dampen its vibrations;
several V-shaped traps, modeled from anti-acoustic material, literally absorb all the sounds from the passage of the air flow.

Hoods made according to the technology of Italian specialists create noise at minimum speed no more than 30 dB- such sounds do not stand out against the background of general room noise, it can be distinguished only at the maximum fourth fan speed.

From Falmec it reaches 800 m 3 /h, and from other manufacturers with a much higher noise impact, only 400 to 600 cubic meters / hour.

To understand how these unique hoods work, watch this video:

Overview of the quietest hoods

Today, every customer seeks to purchase an exhaust system with low noise impact, good power and low price. We present for comparison several options for exhaust systems from different manufacturers.

The hood from China has two speed modes, it is switched by buttons, the backlight is two incandescent lamps of 40 V each, there are no circulation or filtration modes. Dimensions: 600x473x140 mm, fitting diameter 120 mm. Maximum productivity - 600 m 3 / h, noise pressure - 44 dB, cost -7200 rubles.

Hood Cata TF 2003 Duralum

The hood is made in Germany, the color is different, the version shown in the photo is called Black. Elegant design, excellent quality. There is a grease filter and a separate place for coal, but such a filter must be purchased separately. Mechanical control - three speeds, productivity 390 m 3 / h, power consumption - 110 W, noise level 39-46 dB (3rd speed). It perfectly removes all odors, there is a backlight, but when turned on for a long time, the case gets very hot.

The retail price of such an extract is 8090 rubles, it is possible recirculation mode, only it is necessary to install a carbon filter so that the air is cleaned much better.

An acceptable noise level is achieved at the expense of performance losses.

Hood Krona steel Bella 600

Elica Oretta Wh/A/60

The undisputed leader from Italian manufacturers, judge for yourself: the performance in the mode of removing polluted air outside the premises is 900 m 3 / h, during circulation up to 650 m 3 / h, the maximum noise level is not more than 32 dB. Quite elegant appearance, backlight - two halogen lamps, 28 W each, speed control is standard, mechanical.

There is a circulation mode, while air purification from pollution is carried out carbon filter High Quality. The price range is from 22.99 to 35 thousand rubles - you have to pay for excellent quality.

So far, absolutely noiseless similar household units have not been invented, but the consumer can choose an acceptable option for himself, based on the cubic capacity of the room and its interior. Someone will be happy inexpensive, but good quality hood, others are looking for an exclusive option for a combined kitchen and living room in country cottage for any money.

Many owners of kitchen hoods are wondering why it makes a lot of noise. Naturally, this creates comfortable conditions on the kitchen.

There can be several reasons for loud noise.

A more frequent fault is the features of the hood itself, a specific model. Cheap ones can be made with less quality, completely thin metal- something is vibrating somewhere. Here you need to look individually. There was a practical case: the backlight mount vibrated and created extra noise.

Weak or incorrect fastening / installation of the hood itself. Vibration and noise may also occur if installed incorrectly or loosely fastened. Always read the installation instructions.

Air duct mismatch. The problem often arises when the instructions were not read. If a powerful hood, for example 1000 cubic meters per hour, is connected to ventilation with a diameter of 100 mm, when the instructions indicate minimum diameter 150 mm, extra noise may occur, as well as performance drops.

Conclusion. The strong noise of the hood is often due to the peculiarity of this model. Secondary factors may be a violation in the installation. Particular attention should be paid to the ventilation duct.

Every housewife knows that it is difficult to get rid of odors in the kitchen during cooking. Therefore, in many residential areas, special kitchen hoods are installed in these rooms that solve this problem. But immediately another appears - the noise from the operation of this device. Therefore, when choosing a hood, the range of which is very large on the market, it is necessary to pay attention to the level of its noise during operation. For this purpose, this review was written, which will tell you how to choose a silent hood for the kitchen.

Performance and Noise

It is no secret that the operation of kitchen hoods is accompanied by a certain noise, which is associated with the operation of an electric motor, a rotating fan: there are no completely silent exhaust systems on the market yet.
Noise generation is affected by the following parameters:

Performance - main characteristic, showing how much the hood skips cubic meters air through itself for 60 minutes of work.
Kitchen area.
The power of the exhaust system depends on the size of the room.

From everything described, we can conclude that the listed parameters are interconnected, and they can be calculated using the formula: the height and area of \u200b\u200bthe room is multiplied by 12. The result will show how many times the air in the kitchen should be updated when cooking according to Russian standards.
If you intend to remove polluted air from the room, then the result obtained must also be multiplied by a factor of 1.3, taking into account the length of a standard duct, the depth of the shaft and the number of floors in the building.
Most buyers are interested in why such calculations are needed. Their purpose is to choose the optimal hood for your room. When buying such a system, it is necessary to take into account the required performance and noise level during operation.
When buying, you need to know that when choosing a new hood, it is necessary to take the performance a little higher than necessary so that the air circulation is normal.

Noise level

Manufacturers are increasingly working on the creation of silent hoods in order to make cooking even more enjoyable. To date, there are already special developments in this direction: fans are created with motors that operate quietly. A person almost does not pick up the noise from the operation of such a unit.
Every day a person is faced with different noise, and in order to understand its power, consider the following examples:

Whispering conversation at a distance of one meter - 20 dB.
The voices of people in the auditorium - no more than 30 dB. Note that this noise level is maximum for multi-storey buildings at night.
Quiet conversation creates a noise level of -40 dB - this figure is the limit for living quarters in the daytime.
Communication on raised tones - 60 dB. Note that for Europe this figure is considered acceptable for offices.
Freight transport moves with a noise of 80 dB.
Thunder rolls are characterized by a noise level of 100 dB. Note that at this level, you can listen to music through premium headphones.
The sound of a working jackhammer creates noise in the range of 120 dB.

A person begins to feel pain at a noise of 120–140 decibels, and a working hood works with noise up to 65 decibels, so there is no strong effect on the hearing organs.

How high is the noise level of the hood

Before purchasing an extractor hood, it is necessary to consult about its power and performance, and what level of noise it emits at maximum speed. This information can be found in the instructions that came with the device. To date, most manufacturers produce housings of exhaust systems from sound-absorbing materials, which significantly reduces the noise level to acceptable levels.
And also do not forget about the human factor: for one, 55 dB can be quite acceptable, and for another - very loud.
If you want to purchase a kitchen hood with a minimum noise level, you must adhere to the following recommendations:

No need to buy a hood with a large capacity.
You need to purchase exhaust systems with an operating mode regulator. This can be explained by the fact that they operate very rarely at maximum modes.

It is also necessary to always perform maintenance on time, paying special attention to cleaning the filters and the air duct. When they are clogged, the noise increases significantly.

Innovative developments

At the time of buying noiseless hood a woman can be conquered by an attractive design, good power and performance. In the process of cooking, these systems will not interfere with their hum: you can watch a TV series, talk on the phone and even cook when small children are sleeping. Such hoods are perfect for rooms where the living room and kitchen are combined into one room.
Falmec, an Italian brand, created the NRS Noise Reduction System, which literally fascinates with innovation and build quality. Hoods from this series are 85% quieter than similar systems from other manufacturers. The employees of the company have achieved the almost impossible: they have increased efficiency while reducing energy consumption.
When creating the body and components, sound-absorbing materials were used. For this reason, people who have already purchased these hoods enjoy cooking.
When creating exhaust systems, engineers used the following unusual solutions:

Exhaust fan - located at the greatest distance from the air intake.
Thick body walls, so they absorb sound.
The V-shaped traps are constructed from acoustic material and therefore the hood operates quietly.

Hoods from an Italian company create a noise level of no more than 30 decibols, which means that the operation of this system is invisible against the background of the rest of the sounds of the apartment.

Rating of the quietest hoods

Elica Oretta Wh/A/60

This hood from the Italian brand is the undisputed leader. Its characteristics:

Productivity in the mode of an output of pollution is 900 m³/h, in the period of circulation — 650 m³/h.
The noise level is no more than 32 dB.
The design is very elegant, the illumination is provided by two 25 W halogen lamps.
Speed control is standard.
Air purification from pollution occurs due to high-quality coal filters.

The maximum cost for this device is 35 thousand rubles.

Ardesia Basic-F 50W

This model costs no more than $55, and as it turned out, it is not only the most budgetary, but also the most silent.
The hood has a capacity of 190 m³/h, so it will fit well into the interior of a small kitchen. This system small sizes and very easy to install. The work is carried out quietly, as evidenced by the reviews of many buyers.

Indesit H 161 IX

A good hood, you can become the owner of which for $ 60. Specifications:

Power - 200 watts.
Productivity - 250 m³ / h.
Noise level - up to 50 dB at maximum power.

Among the shortcomings, one can single out the absence of a carbon filter in the configuration.

Candy CCE 16 X

The approximate price of this exhaust system is $130. This model is a fireplace and operates in both circulation and air exhaust modes. Properties:

Power - 150 watts.
Productivity — 450 m³/h.
Noise level - no more than 50 dB, which is confirmed by user reviews.
Reliability - able to work without repair for 4-5 years.

Despite the fact that this model is outdated, it is still in demand and therefore it can still be bought at the points of sale of household appliances.

Ardesia CN60CR

This domed chimney exhaust system sells for $150 and is characterized by high performance and is capable of operating in two modes: exhaust and air circulation. It is intended for a kitchen with a large area. Specifications:

Productivity - 400 m³ / h.
Management is electronic.
Noise - 50 dB at maximum power.
Quality build.
Ease of maintenance.
Attractive appearance.

In this article, we tried to cover the topic of various exhaust systems as fully as possible, described their advantages and disadvantages. We hope this will help you in choosing the quietest range hood for your kitchen.

When the hood is noisy, it is uncomfortable to be in the kitchen. Constant background noise is annoying both during cooking and in the minutes of eating.

Most often noisy in the kitchen hood fan. It is possible that something else inside the hood can vibrate and make noise, for example, it is unreliable mounted mount backlight bulbs.

Rumble, rumble, knock, ringing and other loud sounds occur when there is gap between the hood and kitchen set or the wall to which it is attached.

An experienced and qualified technician can find and eliminate the cause of an extraneous hum or excessive fan noise. It is such a master who will come to your house at any time convenient for you if you order a hood repair service at VseRemont24!

If the new kitchen hood is noisy

There are two reasons why a brand new, just installed, hood may make noise:

1. Noise - a feature of the hood model. Very often, inexpensive hoods made of low-quality and cheap materials or improperly assembled at the manufacturing plant make a lot of noise.

What to do in this case? Invite the master of VseRemont24 to disassemble the hood and possibly find ways to reduce vibration and noise during its operation. Otherwise, or if the master cannot do anything, you will only have to come to terms with the feature of the selected hood and get used to the noise during its operation. Of course, you still have a third option - buying a new, better hood.

2. Improper/non-professional installation and fastening of the hood. When you install the hood yourself, without the necessary knowledge and experience, and also if you invite a non-professional to install, there is a high probability of many mistakes. The most common of them: weak fastening of the hood and discrepancy between the diameter of the ventilation duct.

At improper mounting of the housing, vibration and noise occur even when there is a slight gap between the appliance and the wall / headset. When there is gap in ventilation, the hood will not only make noise, but also work incorrectly.

Master VseRemont24 quickly and efficiently reinstall your kitchen hood.

If the hood, which has been working for some time, has become more noisy, the master will first check the reliability of its fastening. Probably the point is in its violation. Repair will consist in more reliable fastening of fasteners.

However, before calling the master VseRemont24 to his faithful “assistant”, check its mode of operation. At maximum speeds, the kitchen hood fan is always noisier than usual! Perhaps the problem will be solved if you reduce the power of the work.

The exact price of repairing a very noisy hood is determined upon the arrival of the master to your home, as it depends on the model of the hood and the complexity of the upcoming repair.

Upon completion of the repair, the VseRemont24 master provides the client with a guarantee for the work performed and conducts a free consultation.