Rating of TOP 10 silent bathroom fans with check valve

Bathroom Exhaust Fan Selection Criteria

The main selection criteria include:

• Impeller diameter. It is optimal to choose devices with a size of 10-15 cm.
• Blade rotation.Swinging forward provides better performance, but increases noise.
• Power. The higher the indicator, the greater the load on the device.
• Number of operating modes. Inexpensive devices have only one impeller rotation speed, more expensive ones with a switch allow you to individually adjust the fan, choosing the most convenient operating mode.
• Functionality. Modern models are equipped with a timer, touch control, digital display. For bathrooms, it is recommended to choose an exhaust fan with a humidity sensor and a timer. The more options, the more comfortable it will be to use, but manufacturability will certainly affect the cost.
• Design and construction features. The bath ventilator must be splash-proof and suitable for wet conditions. And the external design should be combined with the overall interior - in form and color.

MMotors VOK-T with non-return valve - heat-resistant fans

A special type of ducts for hot rooms (saunas and baths) have an additional butterfly check valve that prevents cold air from entering from outside.

The series of heat-resistant units of the Bulgarian company includes 8 models with a capacity from 150 to 240 m3/h, which can operate at a temperature of -50..+150 °C.

Pros:

• Durable and corrosion resistant aluminum housing.
• The same aluminum or heat-resistant polyamide impeller (material depends on the specific model).
• Possibility of wall and ceiling mounting.
• Double insulation of the housing to prevent condensation inside the fan.
• A sufficient level of dust and moisture protection of the engine is ip44.

Minuses:

The bearing life of the fan is slightly less than that of household models (30 thousand hours versus 40).

Quietest

The volume of the fan depends not only on the power of the engine, but also on the presence of a bearing, as well as the quality of the fit of the parts to each other. The winners of our review emit noise of about 20 dB, that is, they work almost inaudibly.

PAX Norte 4W

pros

• economical;
• presence sensor, delay timer;
• productivity 110 m³/h;
• bluetooth;
• noise level 20 dB;
• humidity sensor.

Minuses

amateur design.

From 990 ₽

This smartphone-controlled marvel has a built-in calendar and requires a Bluetooth geolocation connection. Quietest bathroom fan: only 20 dB. Turns on and off automatically by sensors. The switch-off delay is programmable.

VENTS 100 Quiet 7.5 W

pros

• productivity 97 m³/h;
• moisture protection;
• color selection;
• check valve.

Minuses

build quality.

From 1730 ₽

This model is declared as low noise (25 dB). But the reviews indicate extraneous sounds: creaking of the body, chirping of the check valve due to a loose fit. The working propeller is multi-bladed, well removes moist air.

Blauberg Brise 100 2.7W

pros

• noise level 21 dB, quiet;
• moisture protection;
• work 24 hours;
• wall or ceiling mounting.

Minuses

• design;
• weak draft: 53 m³/h.

From 4000 ₽

Silent operation is provided by rolling bearings. This model can be installed on a wall or ceiling, and work continuously, as well as when turned on together with the light or separately. Power consumption - only 2.7 watts.

Modern exhaust fans are not just devices for removing moisture and odors from sanitary and hygienic premises.Technological innovations allow you to configure devices through smart applications. A smart home is getting closer, and you can start its equipment with the purchase of a smart fan.

Which exhaust fan is best

To buy an exhaust fan for kitchens, baths, showers and other rooms with insufficient oxygen circulation, you first need to find a reliable manufacturer. Then compare the potential with the service area, the price with the approximate service life. Based on a comparative analysis of the advantages and disadvantages of each nominee, the experts summed up the following results of the review:

• Ballu Green Energy GE-150 - the basic model with an optimal ratio of characteristics;
• Auramax Optima 5C - a universal compact device of domestic production;
• Erre Cromo 12/5 - advanced functionality, automatic operation of the check valve;
• Cata E-100 G - panel design, compliance with international standards;
• Diciti AURA 4C - quiet due to ball bearing motor, light weight;
• Soler & Palau Silent-200 CHZ Design 3C - powerful air exchange, reliable assembly;
• Cata X-Mart 10 Inox H - stainless steel panel with LED backlight, humidistat.

If it is necessary to perform only the main task - filtration and purification of oxygen, you can look at an inexpensive device from the rating with a basic set of options. For connoisseurs of innovation, "smart" devices that can work without the intervention of the owner are suitable

It is important to familiarize yourself in advance with the characteristics, pros and cons, reviews of previous buyers

Pro 4 diameter 100 mm - increased engine life

Prefabricated structure of an axial exhaust fan and a power drive - an electric motor. It is intended for operation in the conditions of the increased humidity.Differs in the increased motor resource, - rolling ball bearings are applied.

Thanks to the constructive solution, the overall resource extended to 40,000 hours. The fan does not need special care, unpretentious.

Designed for long continuous operation. An overheating protection system has been installed. Increased air flow. Mounted in air ducts, ventilation shafts. Mounting type - channel.

Pros:

• Unpretentious, can work continuously for several days and not overheat.
• An excellent solution for wet rooms, works great in the bathroom.
• Simple, clear installation, without any problems.

Minuses:

Heavy, thin plastic. During installation, the walls are slightly deformed, narrowing the passage channel.

Kinds

Fans are of several types:

• Floor - devices on a long leg, the height of which, as a rule, can be adjusted. The floor-standing appliances are equipped with large blades that provide coverage of the largest area. Such models are best chosen for large rooms. Most floor fans are equipped with a function of rotation in different directions to ventilate the entire room.
• Desktop - as a rule, rotate in several directions, have small blades and compact dimensions. The cost of such fans, compared with floor fans, is much lower. They are used more often for the equipment of the workplace at the table.
• Column - are cylinders that operate in a vertical or horizontal position. Equipped with a special system designed to regulate the power of the air flow. Column fans do not have blades, their principle of operation is similar to a heater.
• Ceiling - most often used in shops, restaurants, cafes and other large areas. The units are equipped with large blades and a powerful motor.
• Thermal - equipped with the function of heating the air in winter and ventilating the room in summer. For the manufacture of such devices, heat-resistant materials are used that prevent overheating. Thanks to special switches, you can adjust the power level.

The store has a wide variety of fans.

Which fan to choose for the bathroom

According to the principle of operation, exhaust fans can be axial and radial. The first type has a simpler design and affordable cost, but is characterized by increased noise.

Radial fans tend to be more powerful and are more often installed in larger rooms. But there are also household models among them, characterized by low noise levels.

In order for the fan to be effective, it is important to correctly determine its performance. To do this, the volume of the room must be multiplied by the air exchange rate, which is:

• 6 units if the premises are used by 1-2 people;
• 7 - for a family of 3-4 people;
• 8 - for 5 or more people.

So you get the minimum required fan performance, calculated in cubic meters per hour.

On sale there are duct models that are installed anywhere in the duct, as well as wall and ceiling (overhead) devices that have a decorative overlay and are mounted at the ventilation inlet. The functionality of the exhaust fans depends on the availability of additional features.

Modern devices may have a shutdown timer, a human presence sensor that automatically turns the equipment on and off, a humidity sensor, a display and a check valve.

Models with built-in lighting, which perform a dual function, deserve special attention.

Blauberg TURBO - light version

These fans are also designed to work in rooms with high humidity. Only their case is not made of steel, but of durable impact-resistant plastic.

The Turbo family is represented on the market by six models with a capacity of 170-1360 m3/h. A two-speed motor is used as a drive.

Pros:

• The special composition of the plastic used has increased resistance to fire.
• Simplified dismantling of the engine block together with the impeller for maintenance - without unwinding the ventilation duct.
• Built-in overheating protection.
• The ability to choose a model for connecting to pipes of any diameter from 97 to 247 mm.

Minuses:

Noise performance increases with the increase in fan power. And if for younger models it is low (27-34 dB), then for older models it reaches 55.

The best duct fans in the bathroom

Inline fans can be installed almost anywhere in the duct. This means that it is possible to lay ventilation lines for them more rationally, bypassing any obstacles. They can also be radial and axial; in everyday life, the second type of devices is mainly used.

Blauberg Turbo 315 – powerful yet compact fan

5.0

★★★★★editorial score

86%
buyers recommend this product

The model is equipped with a powerful engine with two high-speed modes. With a capacity of 1750 m3/h, the fan is suitable for spacious bathrooms and large families.

The Blauberg Turbo can be used for both extract and supply ventilation and therefore does not have a non-return valve. But it is equipped with overload protection and is suitable for continuous use for a long time.

You can connect remote mode controls to the device, which are purchased separately.

Advantages:

• High performance;
• Compact dimensions;
• Overheat protection;
• Two speeds of work;
• Splash-proof execution;
• Possibility of installation of the regulator.

Flaws:

High price.

The fan is suitable for all bathrooms - large and small, and can be mounted even in cramped conditions.

Vents Quietline 100 – low noise inline fan

4.8

★★★★★editorial score

84%
buyers recommend this product

The model belongs to the Quietlan series of duct fans, which are suitable for exhaust and supply ventilation and can be installed in any air duct, including a flexible one. This unit has a connection size of 100 mm, but the series also includes devices for 125 and 150 mm.

The standard package does not have add-ons, but you can purchase modifications with a built-in timer and purchase a DIP controller (electronic control unit) that allows you to adjust the fan operation within 4 modes.

The device is equipped with an outlet with flow straighteners that increase air pressure while reducing noise to a comfortable 25 dB.

Advantages:

• Versatility of application;
• Low noise level;
• Increased air flow;
• Possibility to install a speed controller;
• The presence of modifications with a timer;
• Engine protection against overheating.

Flaws:

There is no motion sensor.

Exhaust fan Vents Quietline 100 is designed for rooms up to 15 square meters. m.

Era Profit 5 - extract and supply fan

4.7

★★★★★editorial score

82%
buyers recommend this product

The device combines two functions at once: outflow and air inflow. This means that it can not only rid the room of excessive humidity and unpleasant odors, but also fill it with fresh air.

Suitable for operation with both plastic or metal, and with flexible air channels.

The fan capacity is 190 m³/h with a bore diameter of 125 mm. There is no timer or presence sensor, but the device is very quiet and has a low cost.

Advantages:

• Provides outflow and inflow of air;
• Suitable for different types of air duct;
• Has an affordable price;
• Discreet design;
• Sufficient performance.

Flaws:

There is no timer.

The fan will ensure the supply of fresh air and the removal of damp in bathrooms up to 27 sq. m.

What to consider when buying an extractor fan?

its following characteristics

Performance. Any buyer can calculate this parameter, even without special knowledge. All you need to do for this is to multiply the volume of the room by the frequency of air exchange. The last parameter refers to the number of air changes per 1 hour of operation. In this case, the multiplicity depends on the type of room for which the exhaust device is purchased. So, for a bathroom that is used by up to 3 people, it will be equal to 6, if more than 3 users - 8 and up to 10 for a toilet.

It is advisable, when choosing a silent fan model for the hood, to buy a device that has overestimated performance. So, for a bathroom, a device with an indicator of 95-100 m3 / h is best suited.

The level of noise generated during operation of the device. The operation of the fan is inevitably accompanied by the appearance of noise - mechanical and aerodynamic. Under the first rises the noise that occurs as a result of the operation of the engine, or to be more precise, the vibration transmitted to the air duct. Aerodynamic is the noise that arises from the movement of air currents. So that the duct fan does not create inconvenience for you, choose models whose noise levels are no more than 25 dB. Models with a threshold of more than 35 dB will not allow you to stay indoors for a long time without feeling discomfort. Therefore, devices with similar characteristics are not recommended for residential use.

There is a solution to reduce the noise level of the duct fan. This can be done by installing a muffler behind the body, as well as by additionally finishing the ventilation shaft with a material with improved soundproofing characteristics.

Design safety. This parameter indicates the level of protection of the device against moisture and dust. It must be taken into account if you are looking for a model of a duct fan that you are going to install in a rectangular shaft in the bathroom or in the kitchen, where high humidity is constantly present. If moisture enters the housing, a short circuit may occur. Therefore, it makes sense to immediately buy fans equipped with moisture protection for such premises. As an alternative, you can purchase devices that can operate in low voltage 24V.

Extractor functionality. Today in stores you can find 100 mm models that can operate in two modes - automatic or standard.Standard axial supply fans start working at the moment the light is turned on in the room. This is a great solution for rooms where the humidity level is normal. If the humidity in the room is constantly increased, then it will be difficult for such devices to remove air. In this case, it is best to purchase a model with a timer that will automatically turn the device on and off.

Also, some models of fans can be equipped with a special humidity sensor, which is very convenient for the bathroom. Of course, such devices for extracting hoods will cost more than standard ones. But thanks to the use of such additions in them, they will be able to remove excess moisture from the room much better and faster.

Device quality. If you want a bathroom or toilet fan to serve you for many years without requiring maintenance and repair attention, then choose models that meet international standards. For example, pay attention to the fact that the duct fan has a protection class not lower than IP 34.

Don't skimp on buying a fan for your home. Try to purchase models that are produced by well-known companies and are very popular among consumers.

The principle of operation of the check valve

Structurally, the check valve is made in the form of a blade (one or more) that blocks the access of air flow from the ventilation shaft or from the street - in technology this is called reverse draft. These devices are very effective in cutting off unpleasant odors from the common ventilation well: if a neighbor often smokes in the bathroom or toilet, then you will not smell of cigarettes.

The principle of operation is very simple: special restrictive ledges ensure the normal movement of the leaves by 90 degrees, so they move in two directions - opening and closing. When the device is operating, the air flow opens it, and at the end of the special springs return them to their original place.

Today there are three main types of check valves:

• controlled type - by means of an electric drive or manually;
• self-closing valve with return spring;
• passive type, which changes its position due to the direction of air masses.

In addition, there is a method for separating them according to the following parameters:

• horizontal or vertical view, depending on the location of the fan;
• round or square type - from the configuration of the duct;
• in the form of blinds.

The best ceiling fans

The main advantage of installing such models is the connection without rewiring and laying pipes for refrigerant circulation, as in air conditioners. The lack of cold air flow helps to avoid colds. In a number of devices, a combination of lighting and cooling functions is provided. The placement condition of the unit provides space savings. At the same time, installation features reduce the popularity of sales, because the installation requires a ceiling height of at least 3 m. The data of comparative tests made it possible to choose the 2 best home ceiling-type fans from 5 nominees.

Soler & Palau HTB-75N

The model with a power of 75 W is produced in white. The axial type of the nominee assumes the presence of 3 blades 142 cm long, which can rotate in 3 speed modes - 150, 210, 265 rpm. The maximum productivity is 11000 m3/hour.The steel blades are protected against corrosion, dust and water. The kit includes a wall-mounted wire remote control. The connection diagram assumes the possibility of directing the air flow up or down.

Advantages

• No noise;
• Good power;
• Ease of use;
• Easy to install;
• Energy efficient.

Flaws

High price

All users recommend buying a ceiling blade fan for blowing a room with a large area. The engine has protection against overheating, which increases the life of the device, increases its reliability. For an additional price, it is possible to re-equip the remote control for remote control.

O.ERRE Oasis R 120

Made of aluminum alloy, painted white. The shape of the blades meets the requirements of aerodynamics to move a large amount of air at a given speed. The motor is equipped with an external roller on ball bearings, which allows you to change the speed of rotation of the blades or the direction of the air flow. In terms of blade diameter and power, the unit is inferior to the previous nominee. At the same time, the manufacturer indicates that the maximum productivity of the model reaches 13800 m3 / h.

Advantages

• 5 speed modes;
• High performance;
• Remote control;
• Ease of use;
• Quiet operation;
• Ease of installation.

Flaws

High price.

Users are satisfied with the quality and functionality of the model. Complaints about marriage, quick breakdown, malfunctions were not recorded.

Classification

When buying, it is important to know the type of fan. There are axial, channel, roof, tunnel and radiator models

The specific choice depends on the area of ​​​​use of the device.

Axial models

Such an electric fan is a wheel with blades enclosed in a cylindrical housing. The impeller is mounted on the motor axle. When the wheel rotates, the blades capture air and move it along the axis. Air masses practically do not move in the radial direction. The efficiency of axial modifications is quite high, but the pressure characteristics are small. Install such a device directly into the ventilation shaft. The disadvantage of these devices is a high (30-50 dB) noise level.

Radial

The radial type fan is equipped with a blade wheel enclosed in a spiral casing. When the wheel rotates, the air mass enters the space between the blades, goes to the periphery of the wheel, is compressed and thrown by centrifugal force into the spiral casing, and then into the discharge hole.

The advantage of radial devices is high energy efficiency. Compared with other types of fans, the electricity saving is 20%. In addition, they can easily cope with high airflow loads.

Centrifugal

Their distinguishing feature is good performance indicators combined with the simplicity of the device. If the footage of the room exceeds 15 "squares", duct-type fans are used. They are mounted under the ceiling and covered with plasterboard structures. Another advantage of centrifugal devices is low noise operation.

7 Dospel Style 100S 15W

Despite the low cost, the Polish exhaust fan perfectly copes with its purpose and has fairly good performance. At a power of 15 W, the air exchange is 100 m3/hour. The design is simple, without frills, but quite modern - the device will harmoniously fit into any interior.The quality of plastic and assembly is on top - this is noted by most users. Most of the positive feedback is due to the long life of the exhaust fan. Some users claim that it has worked for them for more than 10 years, and recommend the model for purchase.

Advantages:

• low price;
• long service life;
• concise design;
• high-quality plastic;
• ease of care.

Flaws:

noisy operation (40 dB).

Blauberg Aero Vintage 125 – performance

Exhaust axial fan with increased performance. It is used in medium and small premises: domestic and general civil, kindergartens, catering establishments, medical institutions.

The design is made in an interesting vintage design that fits into any interior. The rotating parts are perfectly balanced, which made it possible to give the fan low noise during operation.

Pros:

• Interesting design, antique.
• Excellent performance.
• Makes little noise when working.

Minuses:

Despite the high performance, it takes 5~10 minutes to remove the steam.

What device to buy?

When choosing a fan for the bathroom, consider the following characteristics:

• manufacturing quality;
• location;
• type and size of the section of the ventilation duct;
• performance;
• additional options;
• noise level;
• design.

To determine the performance of the device, it is necessary to calculate the exhaust ventilation according to the air exchange rate. This concept refers to the number of times when the air is replaced with fresh air for one hour. For calculation, the area of ​​\u200b\u200bthe bathroom is taken, and the air exchange rate is equated to 7 times.

If the fan is installed correctly, then there should be no problems with its operation, and it will effectively cope with the amount of air intended for it in the room.

For example, you have a bathroom with an area of ​​5 m2 with ceilings of 2.75 m. This means that the volume of the room is 13.75 m3. Multiply the resulting value by 7. As a result, the required fan performance will be obtained.

All devices emit noise from air movement or vibration of working elements. Its level depends on the configuration of the housing, the impeller and its speed of rotation. The more successful the combination of these factors, the quieter the device works.

Based on the room, its dimensions and the preparation of the ventilation shaft, you can choose the right fan.

For a standard bathroom with an area of ​​\u200b\u200bno more than 9 m2, models with air exchange up to 100 m3 / h are used. In this case, the noise will be minimal. But if the apartment has a large bathroom, then you will need a more powerful unit, which causes more noise. In order to reduce the noise pressure level, it is necessary to select an appropriate fan operation mode. For example, a high-performance model with a timer is suitable.

Not knowing which fan is better to choose for the bathroom, rely on the popular models from the rating below.

Properly installing the fan, you can make your stay in the bathroom comfortable and enjoyable.

Choosing a bathroom fan

The principle of operation of such equipment can be radial and axial. The latter is based on a simpler and more understandable design, the cost of which is lower than that of radial counterparts. However, it is not without its shortcomings. During operation, the presence of noise is noted. Radial structures are installed in large rooms, as they are more powerful.Among them, there are also products intended for home use, the indicator of emitted noise which is lower.

In order for the operation of the selected model to be highly efficient, it is necessary to correctly determine the performance indicator. It is understood that the measured volume of the bathroom is multiplied by the figure below (air exchange rate). Standard Calculations:

1. "eight". Suitable for a family of five or more.
2. "7". Used for families consisting of 4-5 people.
3. "6". An excellent solution if the bathroom will be used by 1-2 people.

Thus, it will be possible to independently calculate the optimal performance indicator of the device. Measurements are made in cubic meters/hour. Also in the store you can find channel structures that are mounted on the area allocated for the duct. Also preference is given to ceiling and wall products, which are equipped with decorative overlays. Their installation is carried out at the entrance to the ventilation. The functionality indicator will directly depend on the availability of auxiliary functions.

So, popular models can be equipped with:

1. Check valve.
2. Convenient display.
3. Humidity sensor.
4. Curtains.
5. Automatic on and off system.
6. Human presence sensor.
7. Shutdown timer.

Separately, I would like to note a number of models from the best manufacturers that are equipped with backlight.

Characteristics by type of construction

Structurally, bathroom and toilet fans can be of several types.It is based on the use of various design solutions that affect the characteristics declared by manufacturers.

View	Review
Centrifugal	Convenient and easy to use unit. It is intended for installation in rooms, the dimensions of which do not exceed 15 square meters. m. At maximum power, it can make a little noise. The cross section is round and rectangular. Installation, in most cases, ceiling.
Radial	The shape resembles a paddle wheel, which is placed in a special (spiral) casing. During rotation, air masses pass between the blades. Centrifugal force acts on the compressed air, which is thrown into the casing. After that, it enters the injection hole. The rotation of the axes occurs at an equal distance, and they themselves are parallel to each other. It is based on the work of a hollow cylinder. The design belongs to the category of silent. The presence of curved blades allows you to save up to 20% on utility bills for electricity. The smaller the blades, the less noise the structure will make at maximum power.
Axial	Made in the form of a wheel equipped with blades. Fastening is carried out by cantilever type. Placed in a cylindrical body. On the axis of the electric type motor, the wheel is mounted. Air moves in an axial direction. The device is connected to the input of the ventilation duct. The advantages of such units include ease of installation and high performance. That is why this type of construction is considered one of the best-selling. It is in great demand in domestic conditions.The disadvantages include fan noise (30-50 dB), but the disadvantage should not be considered critical, because extraneous sounds will not be constant. More modern models may not have this feature at all.

Exhaust fan rating

Properly designed and installed ventilation technology guarantees clean air, the absence of humidity, condensate and the ensuing consequences. The overhead type is distinguished not only in shape, size, but also in quality and functional characteristics. Each nominee was evaluated by experts on a group of criteria:

• Productivity - the frequency of air exchange;
• Dimensions - correspondence of the geometric dimensions of the area of ​​the ventilation shaft;
• Diameter - from 80 to 200 mm;
• Security - protection against moisture, shock, overheating, power surges;
• Noise level - recommended no higher than 35-55 dB;
• Additional options - humidity sensor, movement, timer;
• Mounting method - surface, built-in, ceiling;
• Construction type - axial, radial, centrifugal;
• Materials - quality, resistance to external influences, wear;
• Design - classic, modern innovative models;
• Control method - electronic, remote, automatic start / shutdown.

Only the most popular models that meet the needs of buyers were included in the review. After analyzing the reviews, the editors of the magazine determined the advantages and disadvantages of each nominee, compared the declared characteristics with the real ones. This helped to weed out products with inflated promises, a short service life.

The best thermostats

Instrument design

The check valve for all similar devices for home use is made of plastic.The specific design of the check valve is widely used in various exhaust systems for various rooms and kitchen hoods. It is based on the principle of butterfly wings: during the flight they straighten, and the rest of the time they are folded. Two equal halves reliably shut off the air supply to the inside of the room after the end of the fan operation with the help of special springs - they are opened by the air mass blown out.

This design, along with clear advantages, has some disadvantages:

• motor energy is spent on opening the valve flaps, so the fan efficiency is slightly reduced;
• valve flaps do not have sufficient tightness.

But in everyday life, such a fan copes with all duties perfectly.

Which fan to buy for the house

The main characteristic of a fan is its air capacity, which depends on the power and size of the blades.

For ordinary home windmills, these indicators are not particularly important, but in the case of exhaust fans, the performance must be selected with a margin, given the volume of the room.

For a home, it is better to buy a fan with several operating modes - the more there are, the easier it will be to choose the optimal speed. But here it is worth considering the noise performance of technology.

Manufacturers often indicate decibels only for the weakest mode, and then it turns out that at maximum the sound of a running fan drowns out the TV and conversation.

If the fan will operate in a large room with several zones, it is better that the blade unit can be rotated or tilted to change the direction of the air flow.

Modern models have many interesting features that expand the scope of climate technology.

These include:

1. Heating;

2. Ionization;

3. Moisturizing;

4. Backlight.

But do not forget that each additional option increases the cost of the fan. You will learn the rest of the nuances of choosing this home appliance from our other article: how to choose a fan for your home. And now let's get acquainted with the best fans that have recently appeared on our market.

Reasons for installation

Natural ventilation over time can no longer cope with the tasks assigned to it, because no one cleans the shafts of old houses, they get clogged, their efficiency leaves much to be desired. If many users install an exhaust system for the kitchen so that odors do not spread throughout the apartment during cooking, then why not install a bathroom fan with check valve? Indeed, in the bathroom and in the toilet, we often observe such negative nuances:

• unpleasant odors seep from the shaft of the ventilation system;
• there is no normal draft - as a result, the air stagnates;
• there is no inflow of fresh air due to a clogged ventilation shaft of the building;
• mold begins to appear in the corners - this is a clear reason for increased humidity due to poor ventilation.

If, after taking water procedures in the bathroom, condensation remains on the tiles, and humid air persists for a long time, this is a signal that ventilation needs to be urgently improved.To do this, you can install an ordinary exhaust fan, which will forcefully remove moist air from the room, but it will not solve the problems with an unpleasant smell from the mine - only fans with a check valve will help here.

Treating all problem areas with chemical components is only half the battle, until you install a household fan for high-quality exhaust of stagnant air, you will not solve these problems. In addition, it is necessary to ensure a normal supply of fresh air for the toilet and bathroom, otherwise all efforts will be in vain. Therefore, you should not make the doors completely hermetic - air must somehow enter these rooms for better ventilation.