Air purification and cooling system in the apartment. Supply ventilation in an apartment with filtration: principle of operation, design features, prices and installation method

Fresh air in a living space is not a luxury, but a vital necessity for the human body. Surprisingly, in our time very few people pay attention to the issue of fresh air ventilation in city apartments. And there are still people who first hermetically seal window openings with plastic windows and then install air conditioners, naively believing that they will provide fresh and clean air in the room. It would seem that this has already been discussed many times - household split systems operate exclusively in recirculation mode and circulate air in a circle. But many people don’t even deliberately open the windows when the air conditioner is running, thereby completely eliminating the flow of fresh air into the apartment.

Let's understand the problem and the available solutions together. Let's start with the basics. When a person breathes, he absorbs oxygen and releases carbon dioxide. Therefore, for normal life, our task is to ensure an influx of fresh air and remove carbon dioxide from a closed room. Nominally, all city apartments have exhaust ventilation with natural draft, which is directly related to the overall height of the building and the street temperature. In particular, the draft of natural ventilation in the warm season is minimal. For ventilation to work, an air flow is necessary (even if you install a fan at the outlet from the apartment). To do this, it is necessary to open the windows, that is, manually regulate the volume of air entering the apartment. And if the windows are sealed plastic and also closed, then there will be no influx of fresh air from the street in principle, and in fact the exhaust ventilation will pull air from the entrance through the front door.

If the windows are not opened, then the apartment will be stuffy - the first sign of exceeding the level of carbon dioxide in the air. This is fraught with, at a minimum, a deterioration in well-being and a decrease in brain performance. Many people mistakenly assume that the so-called air wash will help in such a situation. But it works exactly like a household air conditioner and circulates the air in the room in a circle in recirculation mode. Yes, it traps dust particles, but unfortunately it cannot convert carbon dioxide into oxygen. And over time, air washes become a source of various bacteria that form on the filter element. Exactly the same story awaits you with an air conditioner that often operates without a flow of fresh air (I think many people are familiar with the nasty smell when turning on the air conditioner in a car - so a sign of such a smell is the very frequent operation of the air conditioner in recirculation mode, as a result of the fact that the filter begins to multiply bacteria that got there from the air exhaled by a person).

Therefore, as with an air conditioner and an air washer, we definitely need an influx of fresh air from the street. But here another problem arises - filtration of street air. If you live away from highways and large industries, and the windows of your apartment overlook a quiet courtyard, then this will concern you to a lesser extent. But what about those who live with windows facing a busy avenue? After all, you will not only have to breathe car exhaust and street dust, but also put up with increased noise. And in this case, it becomes obvious that the street air must be filtered.

The most universal solution to the existing problem is to install a supply ventilation system with forced filtration of incoming air. A device that solves all issues related to the flow of clean air necessary to ensure full human life. Let's study how it works.

2. Let's start with installation. I have an apartment in an eight-story brick “Stalinist” building with windows facing the courtyard. To install supply ventilation, you will need to make a round hole with a diameter of 120 mm in the external wall of the house. In my case, the thickness of the brick wall was 67 centimeters. According to current standards, it is allowed to make holes with a diameter of up to 200 mm in load-bearing structures without any coordination with the relevant services. Before starting work, check that there are no electrical wiring or fittings in the wall at the installation site.

3. First, a drill guide is attached to the wall, then a hose with pressurized water is connected to cool the bit and a pumping line is connected to a vacuum cleaner, which immediately collects all the dust and dirt from the drilling site. Drilling time lasts about 10 minutes, including installation of the extension nozzle. In total, installation takes approximately 40 minutes.

4. A plastic pipe with a diameter of 100 mm, wrapped with insulation around the circumference, is installed into the hole made (this is necessary in order to prevent the appearance of condensation on the pipe during the cold season), two holes are made on the wall for fastening the ventilation unit. Below there remains a hole in which the anchor holding the guide platform for the drill was fixed - it will be closed by the body of the device. A decorative metal grille is installed on the street side. All you have to do is plug the device into an electrical outlet using the three-meter cable included in the kit.

5. The set includes a wireless control panel that duplicates the controls on the front panel. The screen displays (from left to right): the temperature of the air coming from the street, the fan speed (3 modes), the set temperature of the air heating (in winter, the cold air coming from the street will need to be heated) and an indication of the operation of the night mode (you can set the target reduction in the temperature of the air heating and the duration mode operation in hours).

6. A three-stage incoming air purification system is used here. At the top there is a basic filter with a cleaning degree of F5 - its main purpose is to protect from large dust and particles the HEPA filter located after it (stands for High Efficiency Particulate Absorbing - highly effective particle retention) with antibacterial impregnation and filtration class H11 (filters with this level of filtration are used in medical institutions). The final product is a carbon adsorption-catalytic filter.

7. For measurements we will use a high-precision calibrated CO₂ sensor connected to the Testo 480 multifunctional measuring complex. The probe is capable of measuring CO₂ levels, humidity and temperature. The cost of such a device is more than 100 thousand rubles. By the way, among the available household devices capable of measuring CO₂ levels in a room, I can recommend the Netatmo wireless weather station.

8. Filters after three weeks of round-the-clock operation. It is noticeable to the naked eye how dark the base filter has become. According to the instructions, the replacement interval for the base filter is set to one year, and the HEPA filter will need to be changed at least once every 2 years. The condition of the base filter must be regularly monitored because... a clogged filter can significantly reduce ventilation pressure and performance.

9. Inside the device in the upper part there is a damper with an electric drive that closes the round channel in the wall when the device is turned off. On the right you can clearly see the temperature sensor that measures the temperature of the outside air. In fact, it shows the temperature already in the device itself, and it is several degrees higher due to the heating of the air when passing through the wall. Also pay attention to the complete insulation of the primary chamber around the perimeter. This is necessary in order to exclude places with a sharp temperature change (when operating in the cold season) where condensation may form.

10. After initial cleaning, the air passes through a ceramic heater with a dual-circuit connection used to heat the air entering the room.

11. Engineers seriously messed with the heater control circuit. Power is supplied pulsed at intervals sufficient to maintain the required outlet air temperature. The photo shows that at the first fan speed the consumption is 15 watts. For a given increase in outside temperature from +15°C to +25°C, the heating element turns on for approximately 2 seconds every 15 seconds. This control allows you to very accurately maintain the required air temperature with minimal energy consumption.

12. After the heating element there are two main filters, and below them there is a centrifugal motor with two blades. There are three air flow speeds: 45, 70 and 120 cubic meters/hour. To better visualize the numbers, you can focus on the fact that for the normal life of an adult who does not engage in physical work, an influx of fresh air in the amount of 30 cubic meters per hour is required. That is, for one person in the room the very first fan speed will be more than enough, but it will need to be increased if there are more people in the room. Since the fan is located after the filters, we have a significant drop in air pressure, which in turn negatively affects the noise level. At the first speed of the fan, the noise, although noticeable, is not at all annoying. At second speed the noise is noticeable and you pay attention to it, but it will still be quieter than if you open the window facing the motorway. At the third speed, the noise already causes discomfort and should only be used for quick ventilation of the room.

13. Let’s take measurements using a Kanomax laser particle counter. There are three lines on the screen displaying the number of particles in the room under study with sizes of 0.3, 0.5 and 5 microns. Above are measurements on the street, below in an apartment (filtered street air on the left). As you can see, we have a reduction in the number of particles by an order of magnitude after passing through three filter elements. This is data for my area and a quiet courtyard with windows facing the avenue - the difference will be greater.

14. And now the fun part. Graphs of CO₂ (green), temperature (yellow) and humidity (blue) measurements. First, the measuring probe was placed outside, and then it was brought into a room in which there were three adults (not engaged in physical work) and the ventilation was turned off. On the left of the graph we see a gradually stabilized level of CO₂ on the street, amounting to approximately 420 ppm (deciphered as parts per million, that is, 420 ppm = 0.042%). The level of CO₂ in the earth's atmosphere is 400 ppm, and in large cities with a large number of cars this figure can reach 500 ppm. Next, pay attention to the interesting jump in humidity when the probe was moved into the room - this is an excellent example of the fact that in the cold season the air coming from the street needs to be heated. The same thing happened here - a temperature drop from +18°C outside to +24°C indoors led to the formation of a thin film of condensation on the measuring surface of the probe, hence the sharp increase in humidity, which immediately began to decrease after that. Now let's look closely at the green graph. In a closed room of 14 square meters, three adults raised the CO₂ level to 2200 PPM in just 20 minutes! Despite the fact that only 0.2% CO₂ content in the air is considered dangerous for normal human life. At this moment, the supply ventilation was turned on at maximum speed (120 cubic meters per hour), as a result of which the CO₂ level began to decrease. In general, a lot of research has been conducted around the world on how CO₂ levels affect human brain activity. There is only one conclusion - fresh air is vital for humans.

15. Let's summarize. Any household air conditioners and air washers operate exclusively in recirculation mode and cannot reduce CO₂ levels in the room. Moreover, the CO₂ level will increase exponentially due to the breathing of people in the room. Therefore, it is strictly forbidden to use these devices with the windows completely closed. But if the windows of your apartment overlook a noisy avenue, then opening the windows will bring not only noise into the room, but also dust particles from the street. And since in our country there are virtually no apartment buildings with a centralized ventilation and air conditioning system (in which filtered air is supplied from the street), compact supply ventilation with filtration of incoming air is the only way to get fresh air in the apartment.

With forced forced ventilation, I completely stopped opening the window for ventilation - this is no longer necessary, besides, after filtration, the street air is cleaner and therefore there is now less dust in the room. The ventilation is turned on around the clock, almost always at first speed and is not annoying at all in terms of noise.

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D For normal operation of multi-storey buildings, a single air exchange of rooms for an hour is sufficient. For this purpose, natural exhaust ventilation ducts are mandatory in standard projects. However, the air flow by default should be provided by window slits, vents, and vapor-permeable wall materials. For many property owners, supply ventilation in an apartment with filtration becomes a real necessity when installing PVC window blocks with double-glazed windows, using vapor-proof wall coverings or films underneath.

Organization of ventilation using ventilation ducts

Requirements, principle of operation

To improve the comfort of living, it becomes necessary to supply ventilation in an apartment with filtration in the absence of excess air pressure in the premises. The ventilation ducts remain unused because they cannot create draft without the supply of fresh air from the outside. The classic scheme is natural ventilation:

However, absolutely sealed walls and window blocks with double-glazed windows do not allow air to pass through. The frequency of air exchange is disrupted. This leads to a deterioration in the well-being of residents, increased humidity, damage to interiors, and the spread of odors from functional rooms (bathroom and kitchen).

For a recuperator, it is enough to make a hole in the wall, align its edges, install a special sleeve, and secure the equipment.

The diameter of the hole is 22 cm, so you will need diamond drilling or drilling small holes along the contour and knocking out the plug with a hammer. Installation is possible in any weather/season and takes 30 – 90 minutes depending on the wall material.

Inserting a supply valve into a plastic window

For the convenience of owners of modern PVC window units, the supply valve is supplied by the manufacturer as a single set with three seals.

Supply valve device for inserting into the wall

Article

Once you have been in a stuffy room, you forever understand that it is impossible to stay in the stuffiness for a long time. When we can't breathe, we get tired, lose concentration, and feel dizzy. So the lack of clean, fresh air negatively affects not only the level of comfort, but also well-being. That is why it is important to organize air exchange in any place where people spend a lot of time, be it an office, an apartment or a private home.

Poor quality ventilation or its absence is determined by the following signs:

Feeling stuffy and
"stuffiness" of the air

Mold on the walls
or ceiling

Airtightness of the room (plastic windows, insulation of ceilings and walls, etc.)

High indoor humidity

Air flow can be ensured by simple ventilation, but this method has disadvantages: not only oxygen penetrates through open windows, but also noise, dust, allergens and cold. It is much more efficient to organize supply ventilation.

What is forced ventilation

Supply ventilation is a system that delivers fresh air from the street into the room. Depending on the type and model, it may consist of the following elements:

Fan

It is the fan that “draws” air into the room. The performance of the entire system depends on its power. However, ventilation consisting only of a fan in the wall is not much different from open windows. Of course, fresh air will be supplied regularly, but along with it will come pollutants and street cold.

Filters

They prevent wool, fluff, dust, pollen, exhaust gases from entering the room - everything that the street air is “rich” with. vary depending on the specific pollutant. Some devices cope with even microscopic dirt with a bang, while some will only save you from insects and large clods of dust.

A heating element

It provides air heating during the cold season. It can be water or electric. Water heaters are usually used in spacious rooms, but for a small room an electric one is sufficient.

Recuperator

It is used to reduce heating costs in winter. It transfers the heat of already exhausted room air to the cold street air.

Sound absorption system

Some fresh air fans are too loud. To reduce noise levels, soundproofing materials are used during development.

Air ducts

Pipes through which air moves. They can be made of plastic, aluminum alloys or stainless steel, hard or flexible - their characteristics depend on the specific ventilation system.

Automatic control system

It combines a temperature sensor, a fan speed controller, a filter contamination level controller and much more. Thanks to automation, you don’t have to worry about the ventilation – it will work on its own.

THE VENTILATION SYSTEM MAY ALSO INCLUDE A DRYER, HUMIDIFIER OR AIR DISINFECTER.

Types of supply ventilation

There are several classifications of supply ventilation. First, let's look at the general categories and then move on to specific options.

By the presence or absence of air ducts:

Ductless– fresh air passes through a hole in the wall or window. For example, supply valves belong to this type.

Duct– air passes through the duct system.

By design:

Monoblock. This type of ventilation consists of one block in which all elements are connected - fan, filters, heater, etc.

Prefabricated– all elements of the system are connected to each other by air ducts.

By ventilation method:

General supply ventilation– air flows evenly into different parts of the room, for example into each room of the apartment.

Local– designed to supply air only in a specific place, for example in one room.

By air circulation method:

With natural circulation. In essence, such ventilation is simply a hole in the wall with a grill through which air from the street passes.

With forced circulation. In this type, the main role is played by the fan, which creates the necessary pressure to “draw” air inside.

Household solutions

Compact air handling units are the optimal solution for an apartment or small office. They come in the following types:

They are mounted in a window or wall. Through small openings, valves deliver fresh air into the room. They either have a built-in coarse filter to remove insects and large contaminants, or there is no filtration at all. The air flow capacity of the valve is sufficient for no more than one person.

They are mounted into the wall and differ from wall supply valves by the presence of a fan and more efficient filters. Thanks to the fan, the performance of the device increases. Depending on the model, there may be an air heating function and remote control.

Three filters in the device purify the street air from large dust, allergens, and harmful gases. The performance of the breather can be enough for five people. Specialists install it using diamond drilling of the walls in just an hour.

The system will help you control your breather and other climate control equipment, schedule their operation and set the necessary settings directly from your smartphone. It also monitors air temperature, humidity and carbon dioxide levels.

Prices

Despite the differences between these three household solutions, they all have undeniable advantages:

The stuffiness will stop tormenting you; working or relaxing indoors will become much more pleasant.

Installation of supply ventilation takes from 10 minutes to an hour. You can enjoy fresh air almost immediately after purchasing the device.

For example, a ventilation valve can be bought for 600 rubles. A breather, of course, will cost more, but the cost of such a device with three-stage filtration still remains significantly cheaper than central ventilation.

By the way, there are also some on the market, but their performance and price still leave much to be desired. More details in another article on our blog.

Large-scale solution

In addition to domestic solutions, which are often used for apartments or small private houses, there is a global option - central supply ventilation. As a rule, during installation it is hidden behind a suspended ceiling. Its branched air ducts deliver air to all necessary rooms or areas of the room. Due to its impressive size, the central ventilation accommodates several filters, a heater and many other components.

Why is it not as popular as a supply valve or a breather? And here's the thing:

• For a long time. Installation of central supply ventilation requires a lot of space, so design and installation work takes a lot of time.
• Difficult. You won’t be able to install central ventilation on your own – you need the help of specialists.
• Expensive. Firstly, the ventilation system itself has a hefty price tag. Secondly, add to its cost the costs of design, installation, repair of the ceiling, maintenance of air ducts and filters - the amount will be at least five zeros. Such a purchase is really necessary, as a rule, only for large premises.

Number of people
in room

Thus, if you want to establish ventilation in a small bedroom, outside of which there is an environmentally friendly area, and in which only one person lives, then a supply valve is sufficient.

If the flow of fresh air needs to be organized in a spacious living room, where the whole family often gathers, or if the apartment or house is located in a polluted and gas-filled area, then one valve is not enough - the most optimal solution would be a compact supply ventilation system, that is, a breather.

But for ventilation of a large workshop or shopping center, of course, one breather is not enough - you need a complex system with many air ducts.

Freshness and clean air are not the same thing. On the street we breathe fresh air, but can it be called clean, especially in urban ecology? But the air in the room can be fresh and clean at the same time - if there is ventilation with filtration.

Most household supply ventilation devices are equipped with air filters. However, the number of these filters, efficiency class and “specialization” are different. To choose the right supply ventilation for your apartment, the price of which will suit you, you will have to understand these subtleties. We will help!

What kind of pollution needs to be dealt with?

Major pollution

Down, leaves, sand, needles, hairs and everything else visible to the naked eye. Such pollution causes a lot of trouble when cleaning, but is the least dangerous. They are heavy and do not float in the air, but quickly settle on surfaces. Therefore, they rarely enter our respiratory tract, unlike, for example, the ubiquitous dust.

Dust

Dust is so familiar and ordinary that few people think about its composition, but they should. Dust is any particulate matter suspended in the air. They can be both large (hundreds of micrometers) and small (fractions of micrometers). For comparison: the thickness of the web is 2-3 micrometers.

There is natural dust, which is formed as a result of soil erosion, volcanic activity, fires, and evaporation of sea water containing salts. There is anthropogenic dust, the main sources of which are industry and transport (especially fuel combustion). Compounds of lead, aluminum, silicon, beryllium, cadmium, quartz, sulfates, nitrates, ammonium - this is an incomplete list of substances that can be found in urban dust.

PM2.5 particles

In general, this is also dust - only extremely fine, less than 2.5 micrometers. Such particles are placed in a special group because they are extremely dangerous. They are so small that they are not retained by our natural organic barriers and directly enter the lungs, blood and brain. There PM2.5 accumulates and forms deposits. They provoke exacerbations of chronic diseases and the development of cardiovascular diseases.

Dust is not only annoying dirt on window sills, but also a real danger to the health of city dwellers. It is clear that it is necessary to protect against such particles, and if fresh ventilation in a house with filtration can do this, then why not use this function?

Pollen, mold spores and other organic contaminants

The most unpleasant thing on this list is pollen, the strongest allergen. However, mold spores can also enter the respiratory tract and cause an undesirable reaction in the body.

Smells

Unpleasant odors from car exhausts, industrial emissions, smoke and fumes from construction sites and landfills are only half the story. All of the above contains many substances harmful to humans: soot, carbon monoxide, sulfur dioxide, ammonia, nitrogen oxide, benzopyrene, formaldehyde, etc. (many of these substances do not smell by themselves, but this does not make them less dangerous). Good supply ventilation in an apartment with filtration should get rid of most of them.

Types of filters for ventilation

What filters are needed to capture all of the above? There are three types of household air filters:

1. Class G filters: G1, G2, G3 and G4. They are designed for large contaminants. Most of the medium and fine dust will pass by them. Therefore, a supply fan with a filter (single) of this class is suitable only for environmentally friendly areas.

The higher the class number, the higher the retention efficiency. For example, the G1 filter filters on average 60% of large particles, and the G4 filter – up to 95%. This is true for filters of any class.

2. Class F filters: F5, F6, F7, F8 and F9. Such filters “catch” smaller particles: dust (except fine dust), pollen, microfibers, soot, etc.

3. Class H (E) filters, also known as HEPA (EPA) filters: H10 (E10), H11 (E11), H12 (E12), H13 and H14. The specialty of such filters is the smallest particles. HEPA filters even cope with PM2.5, against which filters of lower classes are powerless.

There are also more effective filters: Class U filters, which are used to purify the air in areas where a sterile environment is required, for example, in pharmaceutical production. However, for household supply or exhaust ventilation with filtration, such cleaning is redundant.

Separately, it is worth highlighting carbon filters and adsorption-catalytic filters (AC), containing a special mixture of sorbents and catalysts. The active substances in such filters “cling” to gas molecules and hold them in their pores. Such filters are good protection against odors and harmful emissions.

Filters in ventilation devices

When choosing supply ventilation with air filtration, you need to pay attention to:

1) Filter class.
The filtration class that is suitable for you depends on the environmental situation around you. A busy city center, the proximity of a working factory or a highway are all areas of high concentration of harmful substances. In such conditions, a HEPA filter is highly desirable.

2) Number of filters.
A single filter, even a very good one, quickly breaks down and requires frequent replacement. It is recommended to use a cascade of several filters. Firstly, it will provide more effective cleaning. Secondly, it will increase their service life: each subsequent filter clogs less.

3) Filter resource.
As a rule, the larger the volume of filter media, the longer the filter lasts. If the manufacturer advises changing filters several times a year, it means their lifespan is short.

Types of supply ventilation with filters

Central ventilation. The large dimensions of the central ventilation make it possible to equip it with all the necessary filters. Among them, HEPA and carbon filters are often found. If the budget allows and the need for repairs does not bother you, this type of supply and exhaust ventilation in an apartment with filtration is a good option. However, more often compact devices are chosen for apartments.

Supply valves. The design of the supply valves involves only the simplest filter, for example, a class G filter, which filters only the largest contaminants.

Ventilators. Most ventilators are equipped with one or two filters. In more powerful models you can find class F filters, often paired with a carbon filter. Such devices are suitable for areas with average environmental conditions.

Breezers. This is a type of compact supply ventilation in an apartment with air filtration and heating. The breather comes standard with three filters. First, the air passes through a G4 or F7 filter and is cleaned of large and medium-sized contaminants. Next comes the HEPA H11 class filter, which removes more than 95% of small and minute particles, including PM2.5. The job is completed by an adsorption-catalytic filter that eliminates gases and odors.

	Breezer	Ventilator	Supply valve	Central ventilation
Filtration	1. Coarse dust filter F7 or primary filter G4. 2. HEPA fine dust filter. 3. Filter against harmful gases AK or AK-XL	One or two filters no higher than class F	No filters or one filter not higher than class G	Filters can be installed upon request
Performance*	35-120 m3/h per room	0-160 m3/h per room	0-50 m3/h per room	100-500 m3/h for all rooms
Installation		Installation in 1 hour for a clean repair. The through hole in the wall is covered from the outside with a plastic grill	Installation in 1 hour for a clean repair. The through hole in the wall is covered from the outside with a plastic grill	Installation as part of a major overhaul. Air ducts under the ceiling and ventilation equipment outside
Additional functions	Recirculation (indoor air purification), air heating with climate control, control from a smartphone**	Air heating in some models	No	It is possible to install air conditioning and humidification devices, as well as an exhaust module
Price**	from 21,300 rub.	from 23,000 rub.	from 1,500 rub.	from 100,000 rub.

* At a rate of 30 m3/h per person
**Features that Breezer 3S has
***Price information is taken from open sources

WHEN CHOOSING SUPPLY VENTILATION WITH FILTRATION FOR YOUR APARTMENT, BASE ON THE ECOLOGICAL SITUATION AROUND YOU, CLEANING QUALITY AND PRICES.

For good health, the presence of fresh air in the apartment is a very important point. For 1 m2 of closed area, 3 m3 of fresh air should be supplied. There is also a norm for one adult who needs 30 m3 of air per hour.

Good air exchange in numbers

Ventilation is an extremely important communication in the age of dominance of sealed plastic windows

When organizing air supply, it is worth remembering that:

• the air standard for the kitchen area in which the gas stove is located is 90 m3/hour;
• the air standard for a kitchen area in which an electric stove is installed is 60 m3/hour;
• the norm for a bathroom is 25 m3/hour;
• the norm for a toilet room or combined bathroom is 50 m3/hour.

Based on these indicators, it is necessary to organize the flow of fresh air into the apartment.

Supply ventilation: methods of organization

Supply ventilation in an apartment is a type of forced air exchange. It is designed to bring fresh air into an enclosed space from the street using special mechanisms - fans of different power. Also, when designing, it is worth considering the places through which exhaust air masses will leave the room.

Two types of supply ventilation systems can be installed in apartments:

1. natural, which allows fresh external masses to enter the room through wall and window valves. For example, the New-Air valve is capable of providing an air flow of 20-25 m3/hour. The Air box valve will allow you to ventilate rooms even without opening the vents and window sashes. It is worth noting that the performance of the valves is insignificant. The device is equipped with a filtration system and is designed for an area of ​​up to 15 m2;
2. forced, ensuring the flow of fresh air into the room using special equipment - a fan and filter. For example, the Elicent Elegance 100 fan is capable of providing an inflow of 90 m3/hour, has a low noise level of 31.4 dB, and is powered by a 220 V electrical network.

Supply ventilation units for apartments: popular models

Ventilator Vents TwinFresh

The device is equipped with a fan operating in supply and ventilation mode. The mechanical valve is supplemented with an air recovery system6 for heating the incoming inflow due to the temperature of the exhaust air masses. Ventilator capacity is 58 m3/hour, noise level is 29 dB, power supply is 12 V, energy consumption is 7.3 W. VENTS equipment is supplemented with a filtration system with a purification degree of G3, designed for continuous operation, and does not form condensation during operation.

Air supply unit Vents VPA

The device is made in the form of a monoblock unit in an insulating housing. There is a fan inside the unit and a filtration system installed that allows you to eliminate not only street dust, but also prevent insects from entering the room. VENTS VPA with filtration is supplemented with an electric heater for heating the incoming external air masses. The productivity of the installations is 200-1500 m3/hour, operating pressure is 715 Pa.

Air conditioning system Daikin Ururu Sarara with fresh air supply

A special feature of the device is the possibility of air conditioning with the addition of fresh air in an enclosed space. A modern slip system can not only supply atmospheric air, but also, if necessary, humidify it. This system is capable of providing a change in air masses in a room: in a room with an area of ​​24 m2, the air is completely changed within 2 hours of continuous operation of the device. In addition, the system is equipped with other functions:

• humidification: the device is able to provide optimal performance - 50% humidity at a temperature of 22 degrees. A built-in element in the outdoor unit extracts moisture from air masses and distributes it evenly throughout the room;
• dehumidification: the device eliminates increased humidity in the room without reducing the temperature, which is very important in the autumn and spring periods. On hot summer days with high humidity, using a slip system you can dry and cool the air masses in the room;
• two-level air purification in outdoor and indoor units. Installing a phytocatalytic filter allows you to remove not only dust and small insects from the air masses, but also eliminates formaldehyde, viruses, and mold;
• ensuring uniform air flow: dampers with a wide coverage angle can be directed down or up, allowing air masses to “diverge” throughout the room.

Monoblock systems "Brizart"

Devices of this model range are designed for ventilation of rooms up to 100 m2. The automated system is capable of providing filtration, heating and ventilation of the air in the apartment.

Table Models of air handling units “Brizart”

Device	Produce	Heater	Fan	Room area	Device dimensions
Brizart 350: economy, standard, comfort	350m3/hour		power 105 W, supply voltage 220 V	50-75 m2	36.5x22x92 cm, weight - 25 kg
Brizart 500: economy, standard, comfort	500m3/hour	power 1.2-4.8 kW, voltage - 220/380 V	power - 160 W, voltage 220 V	70-100 m2	36.5x22x92 cm, weight - 25 kg

Installation of a wall supply valve

• Determine the location for installing the ventilation element. The ideal option is the space between the radiator and the window sill: the incoming fresh air will be warmed up in the winter before being distributed throughout the room.
• Drill a through hole into which the valve will be installed.
• Install the air duct: outside the device should be at the level of the wall, inside the room - protrude 1 cm.
• Fix the ventilation grille from the street.
• Secure the body.

Important! The housing must be installed very tightly. A seal is used for fastening to the air duct.

Installation of a ductless ventilation system

• Select installation location. Installation near a window opening is ideal.
• Make a hole 2 cm larger than the diameter of the exhaust duct.
• Install the air duct and insulate it with mineral wool, glass wool or polyethylene foam.
• Cover the exhaust duct with a protective grille.
• Install a fan inside the channel.
• Install a control system, heating with air filtration.

Installation of a duct ventilation system

Before you begin installing ventilation, you need to understand what supply ventilation is in a duct-type apartment. This is a relatively complex system that provides fresh air to all rooms: air exchange occurs through built-in channels. To implement duct ventilation, it is necessary to place ventilation pipes under the ceiling at a distance of up to 1.5 m from each other.

Important! The length of ventilation pipes should not exceed 3 m from the air supply unit. Also, during installation, frequent turns and bends should be avoided: turns of 90 degrees or more are unacceptable.

After installing the air “path,” you can begin installing a forced ventilation system. Installation is carried out in the same way as when installing local ventilation. The last stage of the work is the supply of ventilation ducts.

For high-quality operation of the ventilation supply system, it is important not only to supply fresh air, but to remove it from the apartment. As a rule, public ventilation shafts are sufficient to remove exhaust air. A hood in the kitchen and installing a fan in the bathroom will provide clean and fresh air, eliminate odors and prevent the appearance of mold and fungi.