Rating of duct exhaust fans. TD-SILENT is the quietest duct fan. The Importance of Safe Design

Traditionally, it is considered that the ventilation system is noisy. In fact, this is not always the case. The noiseless duct fan with a special sound-absorbing design operates very quietly, so it can be installed even in rooms where special requirements are placed on silence.

Why is a Silent Extractor Fan Quiet?

Silent duct fans for exhaust have a special housing structure. It is made of plastic or metal with special sound-absorbing perforation, or with glued sound-proofing material. On the inside of the device there is a soft layer that prevents vibrations and does not allow sound from moving air to spread. In addition, the special shape of the blades allows you to direct the flow without whistling.

Many manufacturers offer silent duct fans, the price of which often depends not only on quality and efficiency, but also on the degree of brand promotion. Our store offers a select range of fans, the cost of which is fully justified by quiet operation and reliability.

Benefits of Silent Design

To achieve quiet operation, the design of the fans is adjusted with maximum precision. Thanks to this, such a system has received additional advantages:

  • high air intake efficiency;
  • minimum energy consumption;
  • large operational resource;
  • smooth speed control;

Thanks to the thoughtful design and quiet operation, it is quite possible to install in a room or bedroom, not to mention commercial and industrial facilities.

For which duct can I buy a silent duct fan

The most requested are silent fans for hood 100 mm. They are suitable for round ducts with a diameter of 100 mm. Since the electric motor provides efficient air injection, even the minimum patency of the channel is quite enough to ensure freshness in a spacious room. Usually they are chosen for installation in apartments, since they have a small air duct that can be hidden behind a false ceiling or wall.

For installation in commercial and industrial premises noiseless exhaust fans 125, 150, 160, 200, 250 and 315 mm are used. Their performance is much higher, which allows for a more intense flow. For domestic needs, silent 150 mm exhaust fans are usually chosen. This power is quite enough for a cottage and other low-rise buildings.

Original fans at a good price

In our store you can buy duct silent fans for exhaust from leading manufacturers. We are confident in the quality of the range presented, so our customers have access to reliable and efficient devices that can last for many years. We always have favorable prices, so by choosing our store, you can purchase equipment that will provide fresh air with minimal cost.

Noise from working ventilation system- a key drawback of the exhaust unit, which provides air exchange in the room. With prolonged exposure, it not only irritates, but also causes acoustic discomfort, irritability, and chronic fatigue. Unwanted noise is often caused by improperly installed equipment or the use of devices not designed for the environment in which they are used. Difficulties also arise when placing ventilation equipment in a limited space.

A silent exhaust fan will help to level the above disadvantages. We are talking about a small electrical appliance, which you can install with your own hands.

    Show all

    What is the meaning of the silent option

    It is no secret to anyone that even the most “quiet” air exchange units produce a certain amount of noise during operation. If we talk about the minimum sound values, then the average is at the level of 35 dB. To the human ear, this is analogous to a whisper. However, even such household appliances cause irritation with prolonged exposure.

    If you install a silent fan instead of a conventional one, you can provide a comfortable environment for the human ear. The volume of such devices is 20-25 dB, which is commensurate with a very quiet whisper. At a distance of 1.5 m from the operating unit, the movement of the blades is almost indistinguishable.

    The dependence of noise on the operating mode and performance of the device

    How a silent fan works

    Silent type devices work at times quiet their counterparts for a number of reasons, the main of which is structural features. The device consists of 3 main functional elements, thanks to which it is possible to reduce the sound effect to a comfortable 25 dB.

    Structurally, the device consists of:

    • electric motor;
    • device body;
    • bearings.

    To form a general idea of ​​​​how exhaust propellers are arranged and work, one should take a closer look at their device.

    electric motor. Silent devices are equipped with the same motors as traditional devices. The differences come down primarily to the method of fixation. Reliable fastening minimizes the noise generated by vibrations. In fairness, it should be noted that poor-quality fastening of an electrical appliance is fraught with vibrations.

    electric motor

    Device body. In most cases, the case design is quite flimsy. Thin walls contribute to the occurrence of vibrations, accompanied by unpleasant sounds. As for the silent unit, it boasts a solid and solid design (subject to the choice of a quality product). Thanks to this approach, it is possible to cope with any vibrations.

    The smooth operation of each part of the electric motor is ensured by high-quality bearings. In conventional units, ordinary solutions are used.

    note! Particular attention is paid to lubrication, due to which any noise and rattle are leveled. This consistency extends the life of the device at times.

    Modern silent duct fans are characterized by impeccable workmanship. Ready product goes through several stages of testing before going on sale. And if the standard of the sound range is not observed, then the fan does not pass the test. Significant noise can also occur if the unit is not properly balanced.

    What are the types of silent fans

    Household exhaust devices can be completely different in design. Each device is designed for specific operating conditions. Household models of appliances are usually divided into 4 types:

    • channel;
    • axial;
    • radial;
    • overhead.

    ducted. Placed at the base of the duct. There are no rubber elements in the case, which is the main reason for additional vibrations and noise during operation. However, they are much more efficient than conventional fans.

    Short video review of the device channel type

    Domovent VKO. Overview of a household duct fan

    Axial. Pass air flows in the direction in which the motor rotor moves. Noise is suppressed in the body of the device by 80%, there is no need to talk about the complete absence of sound waves.

    A short video review of the axial type apparatus

    Overview of the axial fan VENTS VKF 4E 350

    Radial. The main purpose of devices of this type is the elimination of noise at large industrial facilities and enterprises. For household premises are used only in exceptional cases. A separate device is mounted under each ventilation duct. Fans create a minimal sound background, but are characterized by huge dimensions (but if you wish, you can find a unit of a small size), which complicates their installation in residential buildings and apartments.

    A short video review of the radial type apparatus

    Fan overview Vents VKMts 100

    Overhead. One of the most popular options. They are widely used in apartments. The device is mounted at the outlet of the ventilation duct, which greatly simplifies the installation process.

    A short video review of the overhead device

    Fans Electrolux EAFM-150 for the bathroom and toilet "Smart Home". A small review.

    There are also specialized solutions on sale, but they are not so relevant for the average homeowner, and are often niche. However, the same definitely deserves attention. Specific models differ from each other nominally, according to some additional features.

    What parameters and functions of the fan to pay attention to

    Before buying a hood device, you must carefully study its technical characteristics, take into account a number of important parameters.

    1. 1. Performance . Optimal value is determined by a simple formula: the volume of the room is multiplied by the air exchange rate. The last parameter for 3 people corresponds to 6, for the toilet - 10, for the bathroom - 6.
    1. 2. Noise level produced during operation. The gold standard of modern devices is 25 dB. You can place sound-absorbing material behind the base of the case, which will reduce the final value by a few more decibels.
    2. 3. Protection of internal components from dust and moisture . This parameter is relevant primarily for . Obviously, moisture or grease in the body of the device can cause a short circuit. Initially, it is necessary to give preference to models protected from water.
    3. 4. Additional functions. The fan can operate both in standard mode and in automatic mode. In some models, the activation of the unit is provided immediately upon turning on the light. Solutions with a built-in timer, as well as a constant ventilation mode, have proven themselves perfectly.

    Advice! When choosing a quiet fan, preference should be given to units with indicators 15% higher than the required, calculated ones.

    Models automatic devices can be equipped with an integrated humidity sensor, which is extremely convenient. The cost of axial products is higher than standard ones, at the same time, the efficiency of such devices is unrivaled. Experts advise using devices with an IP34 protection class.

    Choosing a fan for the bathroom in the apartment

    Before starting installation work, make sure that the ventilation in the room is working properly. About that, we already wrote earlier. The next step is to choose the most suitable place for installing the fan. Experts recommend mounting an exhaust propeller under the ceiling, since, according to the laws of physics, it is up and hot air masses rise.

    Advice! When choosing a device, the installation location must also be taken into account, since not all models can equally well be placed at an angle, horizontally, or in an existing vent.

    • any installation work it is more efficient to carry out repairs in the apartment in parallel;
    • the wiring is hidden in a separate box;
    • for a toilet, it is more expedient to combine a light switch and a fan;
    • vibrations can be leveled with a plastic pipe fixed with cement, sealant or mounting foam;
    • fans are suitable for the toilet, placed near the ceiling directly above the toilet;
    • You must carefully read the instructions that come with each device.

    Procedure:

    1. We insert the fan into the hole in the wall, and if the hole is much larger than the size of the duct, then we need polyurethane foam to close the voids around the duct.

    2. If the fan needs to be replaced for any reason, it is rather problematic to get it after fixing it with foam, therefore, it is recommended to purchase and fix a piece of plastic pipe to fit the size of the air duct. And then insert the fan itself into the fixed and plastered plastic pipe. Thus, if necessary, the fan can be easily dismantled.

    Do not forget to bring out the wiring to connect the device.

    3. If, after you insert the fan into the pipe, it dangles, then you can put a pair of rubber bands on it to seal it. With their help, the device will not only sit tighter, but vibrations will also decrease. With this method, you can avoid fastening with self-tapping screws, that is, you do not have to drill the wall. But, if nevertheless you are not satisfied with this option, then you can resort to fastening with self-tapping screws.

    Overview of some fan manufacturers

    To the most popular manufacturing companies producing silent installations for air ducts include:

    • Maico- one of the best representatives of German climate technology. Initially, the company's employees set themselves the main goal - to create equipment that is easy to use and impeccable in terms of workmanship. To date, the product range includes more than 1500 items.
    • Soler&Palau- a manufacturer from Spain, which today occupies a leading position in the world market. Specializes in the production of low-noise ventilation solutions. Every year more and more innovative solutions are used. Any equipment of this company can boast of impeccable technical specifications.

    The model deserves special attention. Soler & Palau SILENT-100 DESIGN 3C. This device is produced in several shades. The fan power is 8 W, with an average performance of 95 cubic meters. During operation, the maximum noise level does not exceed 26 dB.


    To ensure effective ventilation in the room, it is very important to purchase a silent device. Its parameters must correspond to the needs, and the dimensions must correspond to the duct. Thanks to this, it is possible to create an optimal microclimate inside the housing.

Silent duct fan is designed to be used in supply and exhaust ventilation. It is suitable for environments where there are stringent noise requirements and limited space for ventilation equipment.

The device of the channel fan for an extract

The device has an electric motor with an external rotor. When engaged, the rotor moves around the starter, making the engine economical and compact in size. Another advantage of this design is the accuracy and balance of assembly.

Most manufacturers pay considerable attention to the thermal protection of the unit. It's built into the system. The domestic duct fan has a thermal contact relay, which ensures reliability. The restart is carried out automatically, thereby preventing malfunctions and protecting the device from possible overheating.

Our catalog contains various models fans with different housings. They come with a round plastic or rectangular metal case.

Mounting

Round fans are easy to install in the ventilation network. Thanks to a large number various components and accessories, such a product can be installed in any room, and it will meet all necessary standards and design requirements.

The device can be mounted in any required position. Its main advantage is high power with the most compact dimensions. It is great for installation in tight spaces. Manufacturers equip their products with volume controls or transformers to make it easier to control the ventilation of the room.

Main advantages:

  • Long service life
  • Small, lightweight design
  • The device is convenient and easy to assemble and mount
  • Electric motor and impeller are co-located
  • Ventilation power is controllable
  • At start-up, energy costs are significantly reduced, resulting in savings

We will send the material to you by e-mail

High-quality equipment of equipment in this category will help organize the receipt fresh air and removal of contaminants at minimal cost. An added bonus is the absence of uncomfortable sounds. In today's review, we will look at household duct silent fans for exhaust hoods. It provides information that will simplify the choice of the optimal model and help you install it yourself.

Electrical work is carried out with the power off. Conditions must be ensured in which an accidental supply of voltage is excluded. To check the phase, a specialized indicator "screwdriver" or is used.

The photo shows an example of a strong and quick attachment to "liquid nails". However, it must be borne in mind that the dismantling of the structure in this embodiment will be difficult. For this reason, the use of conventional self-tapping screws looks preferable.

The external mounting method allows you to move the noise source outside the residential area. In this case, it is permissible to use a high-performance fan for an industrial category hood.At the final stage, a decorative and protective cover is installed. A test run checks the functionality. Set the desired settings for the timer and other electronic components.

How to extend the life of a duct fan

Careful sealing of cracks will prevent the accumulation of dirt, the formation of mold, and other colonies of harmful microorganisms. The cover should be removed regularly for cleaning. The frequency of the procedure is set taking into account specific conditions. In the most difficult situations, complete dismantling will be required. This is where the self-tapping screws noted above come in handy.

Note! In some models, the mandatory replacement of fine filters is provided.

Is it possible to repair a duct fan yourself

The possibility of restoring working capacity depends on the nature of the breakdowns, the qualifications of the performer. In a 200 mm duct fan (and in general of any diameter), it is not difficult to replace a damaged mesh partition, individual fasteners, typical electronic parts, switches, indicators. Not too hard to do with my own hands decorative panel exactly according to individual requirements.

Rewinding of electric motor coils is carried out using special equipment. It is better to entrust such a task to specialists in a specialized workshop. The second acceptable option is to install a new power unit with similar technical characteristics. The assembly is carried out with the exact centering of the impeller.

Prices, characteristics of modern models, recommendations for the right purchase

Brand/ ModelPower consumption, Wproduction
capacity, cubic meters/hour
price, rub.Peculiarities

Modern ventilation equipment is able to provide a healthy microclimate in any room. But often this is achieved at the expense of living comfort, since the noise associated with work causes at least discomfort and irritability, and even chronic fatigue.

Silent duct fans for exhaust will help you get out of the situation. We will talk about how to correctly select an extremely quiet device designed for installation in an exhaust duct or a hole drilled in a wall. We will show you how to understand the assortment, taking into account the characteristics and features of the work.

Silent duct fans on the market are traditionally divided into different categories, subspecies. But a healthy microclimate largely depends on performance. One of which, noiselessness, is even included in the name, that is, the buyer always needs to make a choice by determining a number of parameters.

The main ones are:

  • noiselessness;
  • performance.

If you like silence, then you need to start the search with the first characteristic, since it is it that has a significant impact on the comfort of living.

Instrument noise criterion

According to sanitary standards SN 2.2.4/2.1.8.562-96, in residential premises and a number of others, the noise level should not exceed a moderate 30 dB during the day and 20 dB at night. Which are comparable to a quiet whisper and in many situations will be quite appropriate for kitchens, bathrooms and other premises.

Each duct fan is noiseless, on which a set of special works has been performed. These include the isolation of structural elements from each other, for example, the engine from the body, as well as the optimization of the aerodynamics of the blades, the channel through which polluted air masses move

But still, you need to remember that often the sound emitted by these fans at 30-35 dB, even from a distance of several meters, will annoy users. This is especially true for situations where there is a bedroom or a nursery next to a toilet or bathroom equipped with ventilation equipment.

As a result, you should be aware that really silent, and without any compromises and tricks of marketers, are models that have such operating characteristic does not exceed 25 dB. In this case, the sound of a running fan is comparable to a very quiet whisper.

Since good is always the enemy of the best, when buying, you need to remember that models that belong to the category of market leaders in terms of noiselessness emit no more than 20-22 dB.

And although the advantage over conventional low-noise models may seem insignificant, it may well become decisive after several years of operation. Those. when the performance of the device decreases, the bearings begin to be produced, the air channels become clogged with dust, and the anti-noise gaskets wear out.


All silent units shown are suitable for use anywhere in the canal, making them versatile and efficient in all conditions.

The comfortable sound of operating ventilation equipment can be provided by a number of complex solutions of engineers.

These include the following:

  • using high precision bearings- such high-quality and balanced products exclude beating, as a result of which there will be no vibration, which, when resonating, can significantly amplify the sound;
  • high technology blades- one of the reasons for noise is the aerodynamic component, so the developers, wanting to make the sound comfortable, carefully select the number of blades, optimal angles of inclination, and also carry out precise balancing of the impeller elements during manufacture;
  • use of technological buildingsquality material manufacturing (metal, plastic) eliminates the vibration of individual parts and assemblies, aerodynamic noise of moving air;
  • using vibration damping pads- Quiet operation is also achieved by using special types of rubber as gaskets to prevent contact between the housing itself and the attachment points of the electric motor to it.

Gaskets have become an important structural element; they isolate the fan housing from the duct, wall.

Bearings, blades and special housings and gaskets - all this reduces vibration, turbulence of air flows and their resonance to insignificant values.

Today, it is no longer uncommon to finish ventilation shafts with modern soundproof materials. Reduces noise and securely fastens the motor to the housing. The power plants themselves are common and are used on all types of fans.

Fan performance figures

This characteristic is considered one of the most important, as it is interconnected with noise. It is clear that the higher the performance, the louder the electric motor and related sounds sound.

As a result, it’s not worth it to thoughtlessly buy, to the kitchen, to the toilet on the principle “you can’t spoil the porridge with oil”, as this can result in a decrease in living comfort and financial losses.

But avoiding negative consequences is not difficult. That is, the optimal power can be calculated knowing that such an indicator should correspond to the derivative of the volume of the room and the air exchange rate.

For example, the volume of a shower room is 5 m³, and the recommended air exchange rate, according to SNiP, is 7-9. And to calculate the performance, you just need to multiply cubic meters by any number of multiplicity. The result is 35-45 m³ / h.


Being the most important characteristic of all kinds of duct fans, performance must be calculated correctly, since an attempt to achieve silence due to a lack of power will lead to the fact that you have to buy a new unit. And excess power leads to excessive consumption of electricity, the occurrence of drafts and an increase in the volume of work.

Different perform a number of important options. Therefore, so that during operation you do not have problems with the device, you should pay attention to a number of characteristics when buying.

Which, in any situation, include:

  • design safety;
  • functionality;
  • geometric dimensions;
  • price.

Although all of these features are traditionally in the shadow of the main performance characteristics (performance, noise), they cannot be called secondary. Since each of them significantly affects the features of ventilation equipment.

The Importance of Safe Design

Since duct-type fans are designed for ventilation in various rooms, they often have to work in difficult conditions. Which create high humidity in the bathroom, kitchen, toilet, the presence of fat particles in food preparation areas and increased dust in other rooms.

All of the above has a significant impact on the performance, durability of the unit. And most importantly, it affects the safety of living. Since particles of moisture, fat can always lead to a short circuit and other negative consequences.

Each used must be at least splash-proof, and even better moisture resistant. An effective measure that allows you to take care of your health is the purchase of a low voltage unit, which is considered to be 24 V, but its power will not be sufficient in all cases.


An important advantage of any duct fan is that it can ventilate air in several rooms at once, regardless of its location. And all you need to work effectively is correct installation and enough power

And the most practical solution would be to buy a fan with a protection class of at least IP34. As a result, the user will protect himself, his loved ones from all sorts of unpleasant cases.

Importance of equipment functionality

Modern duct fans designed for or in the kitchen are quite technologically advanced and the buyer has the right to choose a device with the most suitable operating mode, which can be:

  • standard;
  • auto;
  • autonomous.

In the first case, it is connected to the same electricity switch as the lighting of the room in which it is installed. As a result, both lamps and ventilation equipment are turned on simultaneously.

The shutdown procedure occurs in the reverse order, that is, after turning off, the ventilation and lighting of the room stops.

The method described above is quite convenient and effective for use in, but is already considered obsolete. The reason is that short ventilation cycles are not able to successfully cope with high humidity, for example, in the bathroom.


The purpose of all kinds of fans of this type is identical, that is, they, being in the channel, must divert air masses outside the premises, but they cope with this task in different ways. And it all depends on the level of functionality of products

Some species can work autonomously, determining the level of pollution on their own. Less technologically advanced fans operate on the basis of programs embedded in their timers, and the simplest products ventilate in the interval between switching on / off that the user performs.

This feature does not allow you to effectively cope with the replacement of air masses with fresh ones or leads to an excessive consumption of electricity, and an impressive one. The automatic ventilation option implies that the fan has a timer that allows you to set the ventilation period, taking into account the conditions in a particular room.

As a result, the procedure looks like this:

  1. The user, entering the bathroom or any other room with a fan, turns it on by pressing the switch button.
  2. The ventilation device removes polluted air masses, even after the person leaves the room.
  3. The stop occurs automatically after a user-defined period of time has elapsed.

The advantage of this type of equipment is the ability to choose the optimal mode for all cases. At the same time, user participation in the work is minimal.

The most modern are duct fans that can carry out air exchange in autonomous mode. What allows you to do the presence of sensors (for example, humidity). The signal from which leads to the on / off of the fan itself.


Although all duct fans are hidden from view, this is not a reason to save on the quality of manufacturing materials or anything else. Since, in many respects, noiselessness, durability, efficiency depend on it.

The advantage of the latter method is the greatest efficiency. That is, the air is always clean, while user participation is not required, it is also important that there is no excessive consumption of electricity.

Shape, size and cost

Today, fans with various housing shapes are on sale.

Which are:

  • round;
  • rectangular;
  • square.

But you should know that for domestic purposes, mainly products belonging to the first variety are used.

Rectangular and square counterparts are most often classified as productive industrial devices, so the owner of a house, apartment, office is unlikely to have to deal with them. The only exceptions will be cases when a vertical ventilation pipe is used in the form of a separate box.

The main geometric parameter of household duct fans is the installation size. For example, the specified characteristic is always indicated on the case and in its technical documentation, since it is quite capable of affecting performance.

In addition, the indicated dimensions are standard values, which makes it easier to choose a fan.


The cost of models also depends on the features. For example, fans equipped with a metal case, with the same features, are several times more expensive than their counterparts with plastic cases, although this does not guarantee the possibility of obtaining much more benefits.

Therefore, you should know that for domestic purposes, devices that are marked 100, 125 or 150 mm will be optimal. For ventilation in non-standardly large residential premises, restaurants, offices, options that indicate 160 mm or 200 mm are suitable. Products large sizes are industrial.

Since the performance, functionality of fans, the quality of materials of manufacture and the amount of work that ensures noiselessness are radically different, their price also differs significantly.

As a result for inexpensive option You will have to pay a very reasonable amount. And for a model that can work autonomously, that is, equipped with a humidity sensor, a controller and capable of operating silently for many years, you need to pay many times more.

For comparison: for the money you can buy quite a decent smartphone. However, the most affordable fans are not the best option. After all, they are not designed for a high level of safety, durability.

Types of duct fans

Today, at points of sale, you can find fans that are structurally related to several varieties.

These include:

  • axial, less often they are called axial;
  • radial;
  • centrifugal.

Each type has its own advantages and disadvantages, so you should be aware of them.

Group #1 - axial fans

A characteristic feature of this variety is the direction of air flows along the axis of the electric motor, on which the impeller is located, which is responsible for the movement of air masses.


Any axial duct unit is the simplest type of duct fan. Nevertheless, they are quite effective, economical. In addition, among such equipment there are a lot of modern technological and safe models that can provide a sufficient level of living comfort.

The main advantages of axial fans for all kinds of hoods are:

  • low performance required to move air masses;
  • economical electric motor;
  • simple construction.

The listed features make the units related to the presented type the most silent without any additional measures. This allows us to rank them among the most accessible, and therefore in demand for any household needs.

The main disadvantage is considered to be low performance, which is still quite enough to solve various local problems.

Group #2 - centrifugal fans

Such devices are more technologically advanced than the axial ones described above. This is evidenced by the fact that the air flows do not move straight along the axis, but due to the special shapes of the impeller blades, they are mixed, compressed and directed towards the housing.

In this case, a rarefaction effect is created behind the trailing edges. This leads to the fact that there is a rapid absorption of external air currents.


Radial units are more efficient than their axial counterparts. When choosing them, it should be remembered that there are 2 subspecies of such fans and the products with forward-tilted blades are considered the quietest, moreover, they are significantly more economical than their counterparts with backward-tilted blades.

So, the radial type of fan designed for exhaust can be of two types:

  • with shoulder blades tilted forward;
  • with shoulder blades tilted back.

The first variety is optimal for silent operation, moreover, it is more economical, and by an impressive 20%. But if performance is an important parameter, then it is better to purchase fans whose blades are tilted back.

An important feature of each radial fan for any type of hood, compactness is considered. This advantage is especially valuable when the installation space is difficult to access or there is not enough of it.

Group #3 - centrifugal fans

This is the most modern, quietest and most productive type of duct fans. Their principle of operation is similar to radial counterparts. That is, closer to the body is created high blood pressure, and in the center there is a rarefied space, which leads to more efficient suction of external air masses.


Centrifugal fans are the least known type of fans. Nevertheless, such products are among the most technologically advanced, productive and silent. The only negative is that they are too powerful for small bathrooms, toilets and even kitchens in ordinary apartments and even many private houses

Features of a design and the principle of work does the quietest. In addition, they can be installed directly in the ventilation shaft of the apartment, which eliminates the negative impact on the aesthetic properties of the room.

And most importantly, this helps to increase the power of units of this type and reduce the impact of moisture and dust on them, which prolongs the resource.


Regardless of the type of duct fan, its performance and functionality, it is recommended to clean it from dirt every 1-3 years. It is desirable to carry out the same operation with bearings, which will extend the service life, as well as increase safety.

A significant disadvantage of any centrifugal fan is its high performance, as a result of which they can only be used in rooms from 15 m².

Conclusions and useful video on the topic

This video provides an opportunity to get acquainted with what a duct fan is and understand the principle of its operation:

Among modern inline fans, it is quite feasible to find a silent model of the required power, which is distinguished by durability and safety, and in various price categories. But at the same time, you should have a certain amount of knowledge or you will not be able to get the expected result.

Would you like to tell us about how you chose a silent fan for installation in an exhaust duct? Share what has become the main selection criterion for you personally. Please leave comments in the block below, ask questions and post questions on the topic of the article in the block below.