Rekuperatsiya tepla i vlagi

​Why you need additional ventilation in an apartment

When buying an apartment in a high-rise apartment building, you should be prepared that you will have to rethink the engineering solutions provided by the developer. This also applies to ventilation in an apartment: your comfort depends on it, and it is definitely not worth sacrificing it.

So, the keys to your apartment in a new building or “secondary” are in your hands.

Let's find out what kind of housing you bought and what ventilation is needed in an apartment.

We always consider ventilation not as a separate engineering system, but as a network of systems. During the construction of a house, the developer used various building technologies, which influenced the overall design of the building. 

Everything matters:

  • the material from which the building is built (bricks, concrete, monolith, etc.),

  • type of windows,

  • type of insulation (mineral wool, polystyrene).

Thermal insulation materials make the building energy efficient, that is, one that loses a minimum of heat and cold.

How not to waste the energy efficiency potential implemented by builders?

First of all, think about a ventilation system. The ventilation ducts that are already in the bathrooms, wardrobes or dressing rooms, and kitchens are not the ventilation of an apartment. The developer created them, foremost because he needed to meet the standards, without which it would not be possible to put the house into operation.

The first step to building a real ventilation system is when you put an axial or centrifugal fan on the ventilation ducts, which will utilize moisture and odors. It is also worth thinking about how to ensure the supply of fresh air to an apartment. In old leaky houses, outside air penetrated into the room (albeit in small volumes), providing infiltration. However, modern buildings are absolutely leak-proof. Are you certain that an open window will be enough, or is it worth searching for an alternative?

This will be discussed further.

Learn more about ventilation in our videos

You can save time for reading and familiarize yourself with our video reviews on the topic of ventilation.

Forced ventilation in the apartment and air conditioning system - overview of the system in RC Creator City
Forced ventilation in the apartment and air conditioning system - overview of the system in RC Creator City
What is a heat exchanger | Types and principle of operation | How to choose a heat exchanger for a house and apartment
What is a heat exchanger | Types and principle of operation | How to choose a heat exchanger for a house and apartment
Ventilation - a necessity? Why is it needed and how to implement the system
Ventilation - a necessity? Why is it needed and how to implement the system
Breather and air recuperator
Breather and air recuperator
Ventilation and air conditioning of the apartment - an overview of the object in the Obolon Residences
Ventilation and air conditioning of the apartment - an overview of the object in the Obolon Residences
Ventilation in a private house: methods and rules of organization
Ventilation in a private house: methods and rules of organization

Options for apartment ventilation

Natural ventilation in an apartment

Any ventilation in an apartment, if it is created in compliance with the rules, can provide basic comfort. Of course, each system has advantages and disadvantages.

system is a simple and cheap option to implement. Fresh air is supplied through open windows. However, there will be no full-fledged air exchange; instead, dirty air masses are mixed with clean ones. The window allows air masses with a lower CO2 level than in the room, rarefying the air with a higher carbon dioxide content that is in the room.

Among the disadvantages of natural ventilation, which, if accumulated, can make staying in a room unbearable:

  1. noise from the street - houses standing above the highway suffer the most,

  2. dust - its source is also the road, as well as industrial enterprises,

  3. draft, hot air in summer and cold in winter - you will have to spend money on additional air conditioning / heating;

  4. insects and safety (relevant if there are no nets, an open window is a threat to animals and small children).

Exhaust fans are installed in the natural ventilation system to extract the most polluted air. They are installed in the so-called "dirty" areas - in the kitchen (above the hob), in bathrooms, wardrobes. It is here that the concentration of moisture, odors and heat is the highest. Accordingly, “clean” areas are living areas - bedrooms, living rooms, children's rooms, studies. They must be provided with fresh air, which then get into the “dirty” areas by displacement and is removed from there by the exhaust system.

What will happen if you do not open a window in an apartment without forced ventilation? The consequences are serious. An increase in CO2 above 1000 ppm affects your well-being: you feel drowsiness, loss of strength and energy, it becomes harder to breathe. Everyday affairs, work, study will be harder. In the long term, the brain and circulatory system, without oxygen, begin to work worse and this influences your health.

Forced household supply ventilation in an apartment

​The most low-budget way to organize forced supply ventilation is to install ventilation in an apartment in the form of a supply valve. It happens as follows. A pipe with a thermostatic valve is cut through the wall to the street, which allows approximately 40-60 cubic meters of air to pass through (for comparison, about 600 cubic meters enter the open window).

In order for air to enter the valve, it must be rarified. To do this, two-speed fans or fans with periodic switching are installed in “dirty” zones - for example, from the manufacturers Meltem, Maico (we will talk about them in more detail in the next section).

Such fans operate constantly at minimum speed, rarefy the air and try to draw in air masses from outside through this supply valve. The flow enters the bedroom, saturates it with air, exits through the barrier-free system into the corridor, passes into the bathrooms, wardrobes and goes to the roof through the ventilation duct.

The supply duct has filter elements - and this is a good advantage for this price category.

A serious minus is that the supplied air has the same temperature as outside. Therefore, you will have to spend money on additional heating / cooling, and in general, cold airflow from the wall can cause discomfort.

The second disadvantage is that the amount of air supplied through this valve is often insufficient to maintain an acceptable level of CO2.

The supply valve reacts to cold: there is a bimetallic spring in the device, and the lower the temperature, the more it clamps the cross-section. At -7℃ and below, air is no longer supplied. 

​Even up to this mark, the incoming air loads the heating or cooling system, and at this point, the heated or cooled air will still be removed to the street. The energy efficiency of such forced ventilation in an apartment is extremely low.

Breathers are another supply unit that is placed in the “clean” areas of an apartment. They supply air to the bedrooms, living rooms, and then the flow is taken according to the same principle of air rarefaction by axial or centrifugal fans in the “dirty” zone.

The breathers have not only filters, but also heating elements, so they provide a more pleasant microclimate in the rooms where they are installed. True, the system again turns out to be non-energy efficient - the air is heated by a heating element, and then it is thrown into the ventilation duc

Forced exhaust ventilation in an apartment

Exhaust fans are an important element of any ventilation system. They are necessary even if you rely on an open window for inflow.

All fans can be combined into two large groups - centrifugal and axial. Тhere are also:

  1. Standart fans — activated by the on / off button, they work only by the button. The easiest option, where you control the exhaust system yourself.
  2. Fans with a timer. Simultaneous switching on with the light and switching off according to the program some time after you have turned off the lamp. The disadvantage of a fan with a timer is that in a room with a window during the day you will not turn on the light, so the exhaust system will not work. 
  3. Fans with periodic timer. Works at a set interval: for example, 2 hours of downtime / 20 minutes of work. Such devices are placed in rooms where ventilation is needed constantly, but not intensive. For example, in dressing rooms where outerwear and shoes are stored, and where a person does not go so often. Therefore, a fan that starts working with the light switching on may not be enough.
  4. Fans with humidity sensor and timer. A more “advanced” solution: the fan turns on with light and works considering a sensor that detects high humidity. 
  5. Two-speed fans operate at minimum speed and switch to enhanced mode of operation when the light is turned on.
  6. Finally, fans with photocells 
    react to movement in the room, turning off after some time, set by the timer, after the person leaves the room. They are also appropriate to put in spaces where there is daylight.

Supply and exhaust ventilation in an apartment with heat recuperation

Recuperation has already ceased to be the prerogative of very expensive engineering systems. Moreover, the installation of a recuperator is considered cost0effective and helps and to conserve save natural resources. Here are  the main options for the design of autonomous supply and exhaust ventilation in an apartment with recuperation.

Decentralized ventilation is a system in which air is supplied to each room and taken from it locally with accumulated carbon dioxide.

In such a ventilation system, a household recuperator is installed - a device in which fresh cold air meets dirty warm air. Warm air through the wall of the heat exchanger gives off heat to the cold side, heating the supplied air flow.

Advantages of decentralized ventilation. The system is more energy efficient than previous options (breather, valve). It has better filters.

Disadvantage of decentralized ventilation. Bathrooms, dressing rooms and other rooms of the “dirty” area should be equipped with centrifugal or axial fans. In these areas, there is a short-term ejection of warm, moist air into the street, and ideally, the heated moist air can be reused for heating. 


Household air recuperators
Household air recuperators


Centrifugal fans
Centrifugal fans

Axial fans
Axial fans

Supply valves
Supply valves

A decentralized ventilation system in an apartment with ductwork distributes air supply and air exhaust to different rooms.

This is a unique solution of the Meltem brand (Germany), and a real “hit” of sales for typical Ukrainian apartments up to 80 square meters. To implement this system, a Meltem ventilation unit of the first or second generation is installed, which supplies 100 cubic meters of air.

How can you build such a system in an apartment with two bedrooms, a kitchen-living room and a bathroom?

The main task is to ensure the supply and exhaust of the same volume of air from the housing.

For example, one Meltem recuperator is installed, from which two air ducts with a diameter of 75 mm exit. Each duct carries 50 cubic meters of air into two rooms. Air ducts responsible for air intake are installed in the kitchen, closer to the hob, and in the bathroom.

So, in two bedrooms, where parents and children are, 25 cubic meters are supplied for each family member. Clean air from the bedroom exits through a barrier-free system to other rooms. In the toilet, bathroom and dressing room, it is removed through exhaust fans.

In an apartment up to 80 square meters with one bedroom, air can be supplied to the bedroom, distributed throughout the rooms and extracted from the kitchen.

Air exchange is carried out by air ducts and an air distributor – a grille, an anemostat or a linear diffuser. In this system, a fan with a timer (axial or centrifugal) is installed in the bathroom.

Advantages – the system becomes energy efficient. From the perspective of air distribution, it is designed reasonably: there is no stagnation of air anywhere, the rooms are saturated with oxygen to the maximum.

These recuperators can work based on a humidity or CO2 sensor. In this case, if you need to maintain a carbon dioxide level of 600 ppm, the device will adjust the engine power to reach the required level.

If the humidity is high, the unit will turn on to ventilate the rooms faster.









The central supply and exhaust ventilation system in an apartment with heat recuperation operates with large volumes of air compared to the previous one. If in decentralized system the efficiency of the recuperator reached 70-80%, then in this efficiency - from 90%.

In the central system, the recuperator itself is larger, it is easier for it to heat the air in large quantities. We are talking about volumes of 250-700 cubic meters.

The disadvantage of the central supply and exhaust ventilation is that it is quite large, and it is necessary to find a place for it in an apartment. As a rule, it is placed in dressing rooms, hallways.

The height of the ceiling also changes. Air ducts are installed with a decrease of 17-19 centimeters of the ceiling height: 10-12 cm is occupied by an air duct, 5 cm is a profile and drywall, 2 cm is a slab difference.

The central supply and exhaust ventilation system supply and exhaust ventilation system

The organization of the ventilation system is impossible without high-quality and productive equipment. In the process of working on the objects, Alter Air selected only the best equipment.







Jablotron supply and exhaust ventilation system with VAV valves and CO2 sensor.

In the previous central ventilation system, it was impossible to track where a person was and where more air supply is needed. The equipment manufactured by Jablotron (Czech Republic) has sensors with assigned valves, which are connected on flexi air ducts. The variable airflow VAV valve delivers air only where there is a person. If there is no increase in carbon dioxide, the sensor does not detect it, the valve will close.

An important difference of this system is that it constantly tries to operate at minimum speed to maintain the desired quality of air masses. This saves energy and your money.

If a lot of people suddenly appear in the room, the system will work hard, implementing a scenario that is rare for it. However, if only family members are in an apartment, the air handling unit supplies 240 cubic meters of air, 60 cubic meters per adult or child. This is quite enough to maintain a normal level of carbon dioxide - 800 ppm.

Remark: as a rule, Jablotron domestic units can supply up to 450 cubic meters, that is, they operate at approximately half of the system's built-in capacity.

When the Jablotron system is installed in “dirty” areas, the boost button chip is responsible for air exchange.

Each valve lets through about 100 cubic meters of air - they are distributed over the rooms of the "dirty" area - bathrooms, wardrobes. When we enter the bathroom, the system tries to operate at minimum speed. 

The boost button is built-in behind the switch, it sends a command that a person has entered, the air exchange needs to be more active, and 100 cubic meters will be extracted from the room where the boost button is activated. 

When the light turns off and the time set by the timer passes, the system understands that it is possible to evenly distribute air to the bathrooms and wardrobe again, returning to the previous mode of operation. 

It is also worth mentioning the joint development of Jablotron and Faber – unique kitchen hoods, that can be integrated into the ventilation system. 

These kitchen hoods were created five years ago, and at the same time they proved not only the commitment of development companies to innovation, but also the demand for such solutions among consumers.

What is the point of this development? In all previous cases, ventilation in an apartment assumed a third-party kitchen hood and air release into the ventilation duct. The Faber kitchen hood has a boost button chip. It is connected not to the ventilation duct, but to the unit through four 90 mm air ducts.

When the hob is working, the system ignores the CO2 level and runs at maximum speed - each valve takes in 100 cubic meters, in total, 400 cubic meters of air, which is then given to the recuperator.

After turning off the kitchen hood, the system works for about half an hour at increased speed, and then starts working again according to the CO2 sensors indications.

We also note that at a fairly high price, Jablotron has other features for the user: remote control from a smartphone, a cool breeze cooling section, enthalpy recovery that provides passive humidification, and a high level of filtration.

Ventilation in separate rooms of an apartment

Kitchen ventilation

All the rooms of an apartment, divided into "dirty" and "clean", are involved in the general ventilation system in the apartment.

Experts classify the kitchen as “dirty” areas, so the air from here should be extracted. If your home has an open-space layout, then the space is zoned: the “dirty” zone is above the hob, the “clean” zone is in that part of the room that functions as a living room.

Ventilation in the kitchen can be provided by centrifugal and axial fans Meltem, Maico, Vortice, Soler&Palau, Olimpia Splendid

​A duct system is also implemented with equipment from the brands Systemair, Soler&Palau, Ostberg, Ruck, Salda. The scheme of the duct method is as follows: a check valve, an air duct, a linear duct fan are installed.

In the Jablotron central system, the best solution is to install a Faber kitchen hood without an engine, which does not throw out moist warm air, but sends it to the recuperator for further use.

Bathroom and toilet ventilation

Bathrooms and lavatories are also classified as “dirty” areas and therefore require exhaust ventilation.

For bathrooms fans with a timer and a humidity sensor Meltem, Electrolux, Olimpia Splendid, Maico, Elicent, Soler&Palau, Vents are installed.

Bedroom ventilation

The bedroom is a “clean” area, the place where a person spends the most time. Here it is necessary to provide air supply with supply equipment: valves (Marley, Systemair, Maico), breathers (Ballu, Airnanny, Tion), recuperators (Meltem, Airauliqa, Marley), air handling units (Jablotron, Zehnder, Stiebel Eltron).

Ventilation in the living room

In the living room, as well as in the bedroom, fresh air should be supplied through the supply and exhaust system. If the living room is combined with the kitchen, a kitchen hood is placed above the hob.

The same equipment options are installed in this room – supply valves, breathers, recuperators, central units.

Budget options

Based on your budget and needs, Alter Air can choose the best ventilation system option. The cost of ventilation in an apartment will depend not only on the type of equipment, but also on the features of your project.

The prices given in the article are as for May 2022.


Jablotron ventilation system based on Futura, VAV valves and CO2 sensors from 450,000 UAH


Centralized PVC-based ventilation system with heat recovery from 300,000 UAH depending on the brand selected equipment


Meltem ventilation unit with ventilation of ducts from 85,000 UAH


Supply and exhaust ventilation with the use of breathers, household recuperators, exhaust fans and supply valves from 800 UAH

Design approaches

According to Ukrainian building regulations, design can be carried out in two ways: based on the number of people and based on the level of CO2. Above we mentioned the Meltem unit that can supply 100 cubic meters of air. This is enough for four people, because in accordance with the norms and regulations in Ukraine, 15 cubic meters is the estimated minimum air consumption per person, 25 cubic meters is optimal, 36 cubic meters is for increased comfort.

Note that sometimes clients want to consider in the project the presence of people who do not permanently live in an apartment. We are against such an approach, in practice it is never justified. The short-term presence in the room of a grandmother, a nanny, or even a dozen guests will not create critical discomfort.

Design approaches СО2 sensor
Options for air cooling

When designing a project, keep in mind that the ventilation of an apartment does not provide cooling - it only maintains the level of CO2 in the enclosed space. Therefore, in parallel with the ventilation system, you should take care of air conditioning. Any cooling system is suitable - wall-mounted, ducted or other system.

Note that Jablotron units have a cool breeze cooling section. It works effectively in the demi-season period, but does not completely solve the issue of air conditioning.

Cooling ventilation
Cooling ventilation

Suitable for both demyszonal and night period.

Wall-mounted air conditioning system
Wall-mounted air conditioning system

The inner block is mounted on the wall and cools only the room in which it is located.

Channel air conditioning system
Channel air conditioning system

The internal unit is mounted into the vacuum space and evenly cools the apartment.

Fan coil
Fan coil

Fan coil feature - refrigerant (water), always installed with a heat pump or chiller.

Our projects

Ventilation and air conditioning systems in a 3-room apartment, Kyiv, Honchara street

  • Ventilation
  • Air supply
  • Conditioning
Ventilation unit Jablotron Futura L

The Jablotron Futura L ventilation unit with heat and moisture recovery ensures high-quality air exchange at the apartment, and also reduces the load on the heating system in the cold season. Thanks to the Alfa wall controller and the MyJablotron mobile app it is easy to operate the unit.

Airflex flexible insulated duct

Flexible air ducts Airflex have a high degree of plasticity, which allows air to be supplied even to hard-to-reach areas. Moreover, they are covered with a layer of thermal insulation, which prevents heat loss and absorbs noise characteristics during the operation of the ventilation unit.

Galvanized steel duct with thermal insulation

Thanks to galvanized steel, the duct does not suffer corrosion and other damaging influences. Thus, the long-term operation of the climate systems is ensured.

Duct air conditioner Daikin FBA50A9 (indoor unit)

The Daikin duct air conditioner provides efficient room cooling. The FBA series has a rather thin body, which makes it easy to place in a ceiling space. The self-diagnosis function ensures a safe operation of the device and indicates problems if any occur.

Ventilation and air conditioning systems in a 3-room apartment, Kyiv, Honchara street

A complex of engineering systems in an apartment, Lipskaya street, Kyiv

  • Living room
  • Bathroom
  • Mini-boiler room - 1
  • Mini-boiler room - 2
TROX double slot inline diffuser

Double-slot diffusers from the TROX brand are designed for high-quality air distribution throughout the room. They combine visual aesthetics and high technical potential. Air currents are given in different directions, evenly scattering and avoiding any drafts. Outwardly, only laconic lines on the ceiling remain visible.

Duct air conditioner Daikin FDXM 35F

A low-pressure internal duct unit Daikin FDXM 35F is installed in the ceiling space of the bathroom - it works to cool the bedroom. It is accessed through hatches. The capacity of the air conditioner is enough to service rooms up to 35 m2, which is optimal for a given room. The lowering of the ceiling in a technical room was 300 mm.

Indirect heating boiler Drazice

Vertical indirect heating boiler Drazice OKSE 200 l is designed to provide apartment residents with hot water. The inner surface of the tank is covered with high-quality enamel without nickel, which ensures a long operation of the water heater, and there is also an anti-corrosion coating. The temperature inside can be kept between 7 and 77 ℃. The water heating indicator always shows the current temperature on the front of the tank. There is a fast heating function. This is an excellent solution for an apartment, allowing you not to depend on seasonal blackouts and other inconveniences.

Electric boiler Vaillant Ecoblock

Electric boiler Vaillant Ecoblock An electric boiler Vaillant Ecoblock with a capacity of 6 kW and efficiency of up to 99% works for heating and hot water supply of the entire apartment. It has a wide range of temperature settings for both heating and hot water supply. There are frost protection and 2-level overheating protection. Equipped with eBus data transmission technology. With the help of a capillary thermostat, residents can smoothly regulate the heating temperature in the range from 25 to 85 ℃

Expansion tank Zilmet

The Zilmet expansion tank is designed to compensate extra pressure in the heating system. Works in conjunction with the Vaillant electric boiler above. The special inner lining of the tank prevents the growth of any bacteria, that is, the water does not acquire a metallic taste, does not stagnate or change its properties.

Refiner Ecowater - water softening and filtration system

A modern system for filtering and softening water: cleans water from all kinds of impurities and odors, neutralizes iron, making it soft, pleasant and safe for household appliances, water pipes and human use. The purified water is also suitable for drinking directly from the tap. The refiner does not require changing the carbon filters, and is controlled via WiFi - maximum automation and comfort!

A complex of engineering systems in an apartment, Lipskaya street, Kyiv

Ventilation and heating in a house 150 m2 - Pogreby, Novaya street

  • Heating and hot water supply
  • Water treatment
Hot water preparation tank, 300 l

The tank with a volume of 300 liters was selected specially for the heating system based on the Viessmann heat pump. It uses heat from the pump, stores it and then accumulates in the water. Such a principle guarantees that residents will always have enough hot water for their needs.

"Air-to-water" heat pump Viessmann Vitocal 100S

The Vitocal 100-S AWB-M 230V 101.A04 heat pump from the German manufacturer Viessmann is designed for air-to-water operation. The basic configuration is designed to provide heating and hot water supply. With adding the funtlion "active cooling" the customer also gets a cooling system for his house.

Meibes pump group

The Meibes V-UK series pumping groups are intended for a heating system in order to circulate the heat transfer agent that flows from the heat generator to the heating circuit.

Expansion tank Zilmet CAL-PRO 35 l

Expansion tank Zilmet CAL-PRO 35 l is designed to compensate for changes in the volume of water in the heating system. It prevents pressure drops and helps reduce energy consumption. Used in conjunction with boilers and pumps. Tanks of the Zilmet brand are distinguished by their high strength, wear resistance and anti-corrosion properties.

Hot water recirculation pump WILO Star-Z 20/4 EM

This circulation pump is intended only for pumping potable water. Motor is resistant to blocking currents. Bronze pump casing, glass fiber reinforced synthetic impeller, ceramic shaft with synthetic resin impregnated carbon plain bearings.

Uponor Smatrix base controller X-145 Bus 6X

Uponor Smatrix Base is an intelligent room temperature management system. It shows the need for heating or cooling the air, allows you to turn on and off the economy mode in individual rooms, has 7 planning programs and several control modes - for room temperature, floor temperature, etc.

Viessmann Vitocell 100-E tank, type SVW, 200 l

Buffer tank for the heat pump. It has a versatile use in heating systems with several heat generators and heat consumers due to the presence of several supply and return connections, as well as additional points for connecting measuring devices. Ideal for use with solar plants, heat pumps and solid fuel boilers.

Viessmann Vitocell 100-E tank, type SVW, 200 l

Buffer tank for the heat pump. It has a versatile use in heating systems with several heat generators and heat consumers due to the presence of several supply and return connections, as well as additional points for connecting measuring devices. Ideal for use with solar plants, heat pumps and solid fuel boilers.

All-in-one water treatment system Ecosoft ECOSOFT FK-1354 CEMIXA

The Ecosoft ‘all-in-one’ water treatment system is designed to improve the quality of water for domestic use. It is only selected after water analysis. Designed to reduce hardness, remove iron and other harmful impurities. Ecosoft has been a leader in the water treatment and water treatment market for many years.

Expansion tank Zilmet CAL-PRO 35 l

Expansion tank Zilmet CAL-PRO 35 l is designed to compensate for changes in the volume of water in the heating system. It prevents pressure drops and helps reduce energy consumption. Used in conjunction with boilers and pumps. Tanks of the Zilmet brand are distinguished by their high strength, wear resistance and anti-corrosion properties.

Ecosoft salt tank

This tank is loaded with salt, which is necessary for the solution for flushing the cleaning charge. It is used for softening water and in complex water treatment.

Ventilation and heating in a house 150 m2 - Pogreby, Novaya street

Implementation stages

  • Consultation
  • Development of pre-project documentation
  • Project design
  • Installation
  • Service maintenance


Together with the customers, Alter Air goes through several successive stages of project implementation. This is necessary both for making the best decisions and for the effective implementation of the ventilation system in the overall project. The implementation stages include: consultation (online or offline, depending on your wishes), development of pre-project documentation, project design, installation and service maintenance. In order to implement an apartment ventilation system, it is necessary to figure out what method to use. At the consultation stage, Alter Air specialists tell the client the pros and cons of each system.

Development of pre-project documentation

Development of pre-project documentation

At this stage, documents are prepared for the selected variant of the ventilation system, calculations for the amount of air. Then the standard size of the equipment is selected and a commercial offer is formed for a different budget options - economy, medium, premium.

Project design

Project design

According to the project design, the company's engineers, together with designers and architects, develop a concept that is implemented in the project. Important: the ventilation system cannot be developed without taking into account all the details. Lighting, ceiling height, layout and other aspects must be taken into account. We coordinate our projects with other members of your team - designers, subcontractors. This gives confidence that the project will be implemented exactly in the form in which it was designed.



After the project design is ready, our specialist install ventilation in an apartment. Clients willingly entrust this stage to our company, since the entire project implementation cycle is in the area of ​​responsibility of one contractor.

Service maintenance

Service maintenance

Alter Air also provides after-sales service of equipment in accordance with the requirements of a particular manufacturer.


How is ventilation arranged in an apartment?

The ventilation system in an apartment is organized according to the principle: air supply to the “clean” zone (each living area), exhaust from the “dirty” zone (kitchen, bathroom, wardrobe, bathroom).

What ventilation is better to choose for an apartment?

The choice of ventilation should be made taking into account three factors: your needs for comfort, the effectiveness or inefficiency of one or another method of ventilation, and budget.

After consulting with the specialists of our company, you will find an option that is suitable not only technically, but also financially.

What is the ventilation price in an apartment?

We offer our customers different options: from budget to premium. The price will depend on the chosen ventilation concept, area of ​​an apartment, engineering solutions, etc. The exact cost can be determined only after a calculation by specialists. It should be noted that Alter Air's commercial offer in most cases is final - the cost can increase by no more than 15%.

How does the ventilation in an apartment work in winter?

It all depends on the type of installed ventilation system. For example, the supply valve lets in less air when the outside temperature is lower, and at -7℃ it closes completely.

Where the heat from your ventilation goes in winter can tell you how effective it is.

In a ventilation system without recuperation, the warm air that you heat in the room is removed to the outside.

However, with decentralized system this heat is stored: the recuperator operates with an efficiency of 75%, that is, about 25% of the heat volume is removed through the ventilation duct. A decentralized system with layout has 95% efficiency, 5% is removed through the ventilation duct.

The central supply and exhaust ventilation of an apartment has a heat recuperator with an efficiency of up to 100%, this ventilation always operates at high speeds. The Jablotron variable air supply system operates at minimum speed and better controls the CO2 level in the room.

Do you have any questions? Do you need ventilation in an apartment in Kyiv or in another city? Call 0 800 335 941 or leave a request on the website.

Testimonials and questions
  • 4 / 5


    Добрый вечер, хотел бы узнать сколько по времени занимает именно проектирование системы вентиляции, и реально ли установить все оборудование в кратчайшие сроки?

  • Команда Альтер Эйр

    Добрый день, Николай. Длительность проектирования зависит от многих факторов, включая сложность проекта и особенности интерьера Вашей квартиры. Скорость монтажа вентсистем также зависит от площади квартиры, выбранного оборудования и архитектурных особенностей объекта. Чтобы получить консультацию от нашего специалиста и узнать детальнее о всех нюансах, звоните нам ☎️ 0 800 33 08 28

  • 5 / 5


    Це, мабуть, єдина стаття, в якій я зрозуміла ВСІ нюанси. Дякую, що пишете для людей, а не для колег-інженерів. Нарешті визначилася з вентиляцією для дому, швидше за все у вас і замовлятиму.

  • Команда Alter Air

    Дякуємо, звертайтесь, завжди раді допомогти!