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 formaldehydes, 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.

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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

Many homeowners associate ventilation systems with exhaust grilles and vertical shafts running through the roof. It’s true that these elements remove exhaust air, but without an influx from outside, the hood works ineffectively. For complete air exchange, supply ventilation is needed to compensate for the outgoing air masses. The problem is solved in several ways, discussed below.

Options for organizing inflow

We will explain the importance of fresh air ventilation with an example. Imagine a sealed container of water being pumped out by a pump. Since the vacated volume is not filled with air, the pressure in the tank drops. At a certain point, the pump will not have enough power to overcome the vacuum and pump out further - the impeller will begin to mix the water in place.

Key moment. When indoor air exchange, a similar principle applies - natural or forced exhaust will not be able to effectively remove polluted air if replacement with an influx is not provided.

Without normal inflow, a more powerful hood creates a reverse draft effect (overturning) in a ventilation duct of a smaller cross-section

After installing sealed plastic windows and filling the supply gap previously located under the window sill, the entry of air masses from outside is excluded. Consequences: a fan or ventilation duct of a larger cross-section (usually in the kitchen) upsets the draft in a smaller shaft (toilet), from where an unpleasant odor enters the apartment. The living room, bedroom and other rooms are left without ventilation at all.

There are several ways to make complete supply and exhaust ventilation of a private home:

• folk method - trimming window seals;
• buy an air conditioner with the function of supplying outside air;
• install an adjustable air valve into the plastic window;
• make a hole in the wall and install a local air supply device.

Advice. The performance of a natural home hood can be checked as follows: remove the ventilation grilles in the kitchen and bathroom, attach 2-3 strips of paper over the first opening, seal the second one tightly with A4 sheet and tape. If the strips are drawn into the channel, it means that air is entering the apartment - the draft is working.

Diagram of a one-story house with possible options for air supply devices

Let's consider the pros and cons of each of the listed methods. The task is to offer you the correct and relatively inexpensive way to organize the influx.

The simplest free method

The essence of the method is to use existing drainage holes in the window profile, designed to drain condensate outside. Two hidden holes where the water goes are located on the inside of the frame, the outlets are on the outside of the profile and are closed with plugs, as shown in the photo.

One condition: the method will not work if there is poor traction in the vertical channel. Start by checking the hood and...

The idea of ​​home craftsmen allows you to quickly organize supply ventilation with your own hands without financial costs:

The operation of this ventilation is based on the following scheme: under the influence of the draft of the ventilation duct, outside air is sucked through the drainage hole, passes inside the profile and enters the gap between the sash and the frame. Having risen to the upper part, the air flow enters the room through the opening in the seal.

In winter, heating of the cold inflow begins in the window structure and ends at the outlet, when the air mixes with the ascending convective flow coming from. A supply gap is made in a similar way in a plastic balcony door, but with additional trimming of the outer rubber, as shown in the video:

The advantage of this option is zero cost and a real opportunity to ventilate the apartment with the window closed. There are many more disadvantages:

• the air flow cannot be adjusted; strong wind will blow through the gap;
• in summer, unfriendly insects, such as wasps, can settle in open drainage;
• during the warm period, when natural draft decreases due to a small temperature difference, small holes will not allow the required amount of air to pass through.

The last disadvantage: removing part of the rubber seal is only possible on opening sashes. Drilling into blind windows is not an option. Therefore, the method cannot be called correct and cannot be recommended to all homeowners.

Split systems with ventilation function

In addition to heating/cooling modes, household air conditioners from a number of manufacturers are capable of supplying outside air to the room and even operating as an exhaust hood (alternately with the supply air). Why this option is convenient:

• renewal of the air environment in the room occurs forcibly, regardless of the traction force in the shaft;
• the air drawn in by the fan is processed - filtered and heated or cooled;
• flow intensity is adjustable;
• the volume of inflow does not depend on gusts of wind and other weather conditions.

Operating diagram of the indoor unit of the air conditioner

Reference. The air mixture is sucked in by a separate fan located in the internal block of the split system. An additional pipe is laid through the outer wall - an air duct up to 1 m long.

The main problem with the implementation of such air exchange is the high price of the equipment. Buy an air conditioner for each room for 500-600 USD. That is, for the sake of fresh ventilation - it is inappropriate; there are cheaper options. But if you plan to install a split system for cooling, you should think about choosing a unit with air supply and recirculation.

We formed the negative aspects of using an air conditioner as an air supply unit based on reviews from online store customers and forum visitors:

1. The inflow is carried out only when the unit is turned on; the rest of the time the outer channel is covered with a damper.
2. A separate fan, responsible for supplying fresh air mixture, is constantly noisy.
3. Due to rapid contamination, you will have to clean the filters more often.
4. On some models, ventilation and air conditioning modes are incompatible. Air supply and heating are switched on separately.

Note. It will help you to correctly install a split system in a private house or apartment.

Installing a supply valve in a window

The so-called window ventilator is an oblong plastic cover equipped with an adjustable flap. There are 2 types of valves:

1. Mounted on fixed windows. A through inlet slot is milled into the profile, a protective canopy is screwed on the outside, and a cover with a flow regulator is screwed on the inside.
2. Products for opening sashes. They are installed on the inside of the frame, part of the sealing rubber is replaced with a special material. There is no need to mill the window.

Valve operating diagrams: for opening (left) and closed valves (right)

Reference. The valves allow you to set up work and are designed for all types of translucent structures - PVC, aluminum and wood. Popular brands are Vents, Air-Box and Aereco, price – up to 10 USD. e.

It is advisable to use supply window devices in rooms with good exhaust, otherwise the air supply will be scanty. The declared performance of the valves is about 30 m³/h, which is enough for one person, but not enough for normal ventilation of living rooms.

For the boiler room and bathroom, where the standards provide for more intense air exchange, you will need 3-4 similar products; it is easier to embed the flow grille into the door. Another nuance: the real performance of devices is very different from the declared one.

Calculating the inflow is easy - find out the dimensions of the inlet slot and determine the amount of air passing through it, using the instructions. The result will be less than the promised 30 m³/h (let’s say: no more than 25 cubic meters at a speed of 1 m/s). For 3 family members you will need 4 valves in each room, absurd.

How to install a supply valve on a leaf:

It is more difficult to install a valve in a solid frame - you need to carefully cut a narrow opening in the profile. If you don’t want to contact craftsmen and pay money, make the gap yourself - apply precise markings and drill holes. The visor and inner cover are installed without problems. Brief instructions for installing the product on the sash are presented in the video:

In general, window ventilators are suitable for a small apartment. But in the rooms of a country cottage with high ceilings, the declared performance is not enough. The second negative point: often the PVC window frame is half covered by the upper slope, leaving no room for the valve. Then another technical solution called...

Wall ventilation device

A passive ventilation valve mounted inside a wall consists of the following elements:

• supply pipe with a diameter of 60-150 mm (size depends on the model and performance of the device);
• the outer end of the pipe is covered with a mosquito net and a ventilation grille;
• an adjustment valve is built in at the other end;
• From the side of the room, the pipe is connected to the housing, where an air filter (cleaning class G3) and a heat-insulating gasket are placed.

Note. To prevent condensation from forming inside the channel, a layer of insulation is laid between the wall and the pipe.

As in the previous case, the inflow through the valve is ensured by the vacuum created by exhaust shafts or fans. The products are capable of transmitting 35-60 m³/h of air into the room, depending on the user settings. When you turn on a local hood with a mechanical drive, for example, a kitchen one, the inflow flow will also increase to 70-90 m³/h.

In devices of various brands, there are 2 types of performance regulators - petal and diaphragm, the second will be cheaper. If necessary, any damper can be completely closed. The price of products starts from 15 USD. That is, popular manufacturers - “Vents”, “Domovent”, Helios and others.

How to install the valve:

1. Determine the location of the ventilation element. The recommendation is as follows: it is better to place low-capacity devices with a Ø60 mm pipe between the window sill and the heating radiator. Place valves with a diameter of more than 10 cm next to the window opening at a height of 2 m from the floor.
   
2. Make a through hole in the wall using a hammer drill and a set of drills of suitable length. In a frame or wooden house, use core drills. If the room borders on a balcony, it is better to drill from the outside.
   
3. Cut the pipe to the thickness of the fence, wrap it with Penofol insulation and insert it tightly into the hole. Fill the remaining cracks with foam.
4. From the inside, attach the valve body to the wall, connecting it to the pipe. Place a ventilation grill outside.
   

Advice. Make the hole as round as possible, guided by the outer diameter of the channel wrapped in insulation. Vents products are equipped with telescopic sliding pipes; there is no need to cut them. For installation details, watch the video:

The scope of application of passive inflow devices is much wider than ventilation in an apartment or country cottage. Valves can provide air exchange in other ancillary buildings - bathhouse, boiler room, etc.

There are only two disadvantages: lack of heating of cold air and manual adjustment during operation. In summer the damper opens fully, in winter it is set to minimum. Advantages:

• the valve is suitable for most ordinary users in terms of price and performance;
• incoming air is cleaned by a filter;
• the device does not freeze or become covered with condensation, frost appears on the head in frost below minus 35 °C;
• does not consume electricity, operating costs are minimal.

The heads of the ventilation elements look quite aesthetically pleasing

Breezers and recuperators

The problem with supplying cold air, typical for wall dampers, has been solved in breathers - local air supply units equipped with a fan and an electric heating element. Advantages of the unit:

• three stages of influent purification - in a coarse, fine and sorption (carbon) filter;
• heating the air to the set temperature;
• automatic and manual control of fan performance;
• air quality monitoring – measuring humidity, temperature and carbon dioxide concentration;
• partial recirculation - return of room air after filtration - allows you to save energy;
• remote control from a remote control or smartphone.

Let us note 3 disadvantages of the unit: operating costs for electricity, high cost of the breather and its repair in case of failure. There is no point in describing the installation technology - the household appliance is built into the wall in the same way as a valve.

Breather device - local air supply unit

Reference. With the help of breathers it is convenient and comfortable to ventilate any living space. But it is difficult to call the units generally available - the price of products from the famous Tion brand starts from 300 USD. e.

A wall recuperator, a supply and exhaust unit capable of removing heat from the exhaust air, will cost even more. There are 3 types of installations, differing in cost and principle of operation:

1. Reversible (sellers call them regenerative). The operating algorithm is simple: first, the exhaust air heats the ceramic heat accumulator, then the only fan changes the flow direction and the element releases the accumulated heat to the influent. The cycle is repeated at intervals of about 1 minute.
2. Rotary. There are 2 fans constantly running here - supply and exhaust. Both streams pass through a rotating rotary heat exchanger, exchanging heat.
3. Cross flow. The exhaust air transfers heat to the supply air through the thin walls of an aluminum or copper heat exchanger. The fans direct the flow towards each other, as shown in the diagram.

The most effective recovery option is in a cross heat exchanger, which allows you to return about 70% of the thermal energy back into the room. The efficiency of the rotary unit is slightly less - about 5%. The actual heat transfer rates in reversible units are unknown, and sellers, as usual, overestimate the efficiency of these recuperators.

Conclusion

So, full supply ventilation in apartments and private houses can be organized using valves and forced ventilation units. Recuperators and breathers are quite effective, but they are expensive, and window valves supply little air. A compromise solution is a natural ventilation supply unit mounted in the apartment wall.

Supply ventilation in an apartment with filtration from the TURKOV company, Moscow, no matter where you are, the atmospheric air always contains some kind of pollution: dust, car exhaust, factory chimneys, insects, fluff, smoke, gas pollution, etc.
The article discusses the main types of air pollution and methods of combating them using air handling units with TURKOV filtration.

If you divide air pollution as the particle size decreases, you get the following picture:

1. Fine aerosol, as well as molecular (gaseous) pollution.

Let's consider these types of pollution in more detail, and also select ways to combat them.

These pollutions, as a rule, are local or periodic in nature.

One of the most common reasons for calls to technical service in the fall is due to “the ventilation is not blowing.” Most often this is October; gusts of the October wind blow leaves wherever possible and quickly clog either the protective mesh on the grille or the filter itself. If there are trees somewhere under the windows, you are at risk.
Fortunately, you can get rid of such pollutants using a regular brush or vacuum cleaner.

- “poplar fluff, heat, July...” Unlike autumn foliage, poplar fluff is light and spreads much further; thanks to its volatility, it can get into your ventilation system, even if poplars grow somewhere nearby. If poplars grow under the windows, then be prepared on a hot July weekend to clean either the supply grill with a brush, or the filter from the “carpet” that has accumulated there.

Insects. They are ubiquitous and get stuck in filters en masse, gradually rendering them unusable.
A brush and vacuum cleaner, as a rule, do not help much; small particles still remain in the filter.

The main danger of this type of pollution is that it is a Trojan horse for various microorganisms, bacteria, and other microscopic pests. Once in the coarse filter, bacteria actively multiply and gradually penetrate through the ventilation system into living spaces. The only method of combating this is to change filters on time, without turning them into a breeding ground for bacteria.

Solution:
Protective mesh and coarse filter.

Dust of a technogenic nature, which appears as a result of human activity, a companion of cities and factories, is the most widespread and widespread - this is the same visible dust that swirls on the streets, settles on window sills, on the floor and furniture.

Solution:
To combat this type of pollution, coarse filters are used:

• G3 (retains 80-90% of synthetic dust)
• G4 or F5 (retains at least 90% of synthetic dust)

Dust is mainly of natural origin, dust resulting from soil erosion and volcanic activity. Finely dispersed, distributed absolutely everywhere, capable of penetrating even through closed windows and extremely dangerous. It is this substance, in high concentrations, that causes allergies and poor health in asthma patients.

Solution: To combat this type of pollution, fine filters are used.:

• F5 (retains 50-60% of atmospheric dust)
• F7 (retains 80-90% of atmospheric dust)
• F9 Carbon filter (retains more than 95% of atmospheric dust, smoke, odors, phenol, hydrogen sulfide, ammonia, and other harmful gases)

The most harmful type of pollution is a constant companion of megacities and large factories.
Car exhausts, factories, and thermal power plants are sources of huge amounts of smoke, fine dust and harmful gases.
A separate article can be written about the list of pollutants and gases, their localization and harm.

Solution: Such contaminants can only be combated by using specialized high-purity filters:

• H10 (retains more than 85% of all types of contaminants)
• H13 (retains more than 99.95% of all types of contaminants)

Standard air filtration

In TURKOV equipment we use F5 class filters.
This solution is optimal, as it allows you to filter the air efficiently, eliminating the most common contaminants while maintaining acceptable filter life.

Standard filtration class F5:

• Filter F5 (retains at least 90% of synthetic dust)
• Filter F5 (retains 50-60% of atmospheric dust)

What does a user get with the F5 filtering class:

• The amount of dust in the premises is reduced.
• Lack of mosquitoes, midges, and other flying creatures.
• Lack of poplar fluff.

In the line of ZENIT HECO equipment in a foamed polypropylene casing, we optionally offer to equip the units with double filtration of supply air.
Air filtration classes G4 + F7.
Double filtration allows you to improve the filtration class of the supply air, while maintaining the service life of the filters.

Improved F7 class filtration:

• G4 filter (retains at least 90% of synthetic dust)
• Filter F7 (retains 80-90% of atmospheric dust)
• Replacement frequency: 1-2 times a year

What does a user get with filtration class F7 (Compared to F5):

• The amount of dust in the premises is significantly reduced.
• Reducing allergic reactions.
• Improving well-being in patients with asthma.

Systems with high air filtration i-Vent and Block is a compact air supply unit with air filtration.

Especially for large cities and places with difficult environmental conditions, the Turkov company has developed systems with a high level of air filtration.

These systems are equipped with 4-stage air filtration!

The dimensions, quantity and filtration class of each stage were selected for maximum effective joint operation of the filters.

4 stages of filtration:

Stage No. 1
Panel filter G4
It is used for primary air purification from large contaminants: fluff, insects, synthetic dust.

Stage No. 2
Pocket filter F5
Replacement frequency: 1-2 times a year
It is used for post-purification of air from small contaminants: fine synthetic dust, coarse and medium atmospheric dust.

Stage No. 3
Panel filter F9
It is used for fine air purification from fine atmospheric dust, smoke, benzene, acid vapors, phenol, hydrogen sulfide, ammonia, formaldehyde and other harmful gases.

Stage No. 4
HEPA filter H13
It is used for absolute air purification, for clean areas and clean rooms. In the pharmaceutical and electronics industries, to solve problems of sanitation, hygiene and microclimate in medical institutions, at nuclear power plants, in the production of food (fermentation departments), medicines, etc.

This filtration class is also used for operating rooms.

The use of such a sequence of filters allows you to qualitatively purify the air from the maximum number of the most common contaminants, smoke, microorganisms, and gases by 99.95%.

What does a user get with filtration class H13 (Compared to F7):

• Dust will disappear completely, the only sources of dust from now on are people and street clothes.
• The influence of the external environment on the body of people with allergies and asthma patients is almost completely eliminated.
• Even if there is a busy highway under the windows, the air in the apartment will always be absolutely clean, no odors, no harmful emissions, no gas pollution.

Application of Block high air filtration systems

This is a unit that does not have automation or a heater; the user controls the fan power using a rotary regulator. Basically, the unit is used for air filtration by recirculating air indoors or is installed as a closer on existing ventilation to clean the supply air.

i-Vent This is a self-sufficient supply ventilation unit, with built-in automation and heater. The unit can be equipped with a VAV system and a CO2 system, which will significantly reduce operating costs. The optimal solution for organizing supply ventilation with filtration and a minimum number of ventilation ducts.

The air handling unit is used in apartments and houses with high requirements for air quality, pharmaceutical companies, electronics production, and hospitals. These systems are especially relevant in megacities and near factories, where the level of air pollution is extremely high.

Important:

Application supply ventilation in an apartment with filtration with a body thickness of 60mm, it allows you to place the unit outdoors under a window, or on the side of the window, which eliminates the noise impact of the unit on the user, while the ventilation system occupies a minimum volume under the ceiling.

These systems are designed to organize energy-efficient ventilation systems with high air purification.

Layout:
Supply fans and filters are removed from ZENIT and ZENIT HECO units.
The automation and heater are removed from the i-Vent unit.
The fan power regulator is removed from the Block unit.
ZENIT or ZENIT HECO units add a terminal block for connection to i-Vent or Block
i-Vent or Block units add a terminal block for connection to ZENIT or ZENIT HECO.
The electrical diagram for connection can be viewed at the link: Electrical diagrams

*System compatibility table

Advantages of these ventilation systems:

• High air filtration is maintained.
• The efficiency of the supply and exhaust ventilation system is maintained.
• It is still possible to place i-Vent on the façade of the building.
• The noise level of the air handling unit is reduced.

By default, air exchange in the apartment is provided by natural exhaust ventilation. Remember the holes with bars under the ceiling in the bathroom and kitchen. From them there are ventilation ducts from the apartment to the common building exhaust shaft, which goes out onto the roof. Through these channels, stuffy air is removed from the apartment to the outside. But it is necessary not only to remove the air, but also to supply fresh air from the street.

Air can enter the home through open windows. But as soon as they are closed, the street air stops flowing into the apartment. And without inflow there is no exhaust. On the other hand, dirty air with impurities of exhaust gases, allergens and bacteria enters the apartment through open windows. If you are allergic, then in the summer poplar fluff, plant and flower pollen are added here. And in winter, during a period when the immune system is weakened by the fight against viruses and microbes, open windows give you “dangerous” drafts, which does not bode well for your health.

There is a solution - install a fresh air ventilation system. They are designed to bring in fresh air and have various filtration options. There are heated appliances, which is important in the cold season. Suitable for apartments, houses and offices up to 100 m2.

Why is forced ventilation needed?

without forced ventilation

With traditional ventilation through windows into the apartment dirt, noise, bacteria and odors enter.

With forced ventilation

Inflow Provides ventilation and purifies incoming air simultaneously.

What to look for when choosing supply ventilation

It can be central or compact. Central - this is when there is a ventilation unit under the suspended ceiling or on the balcony, driving air through pipes that are stretched throughout all the rooms. Such ventilation “eats up” a lot of space, requires serious repair work and is expensive. Central ventilation makes sense if you have a private house or apartment at the stage of major renovation.

If the apartment already has a fine finish, then it would be a pity to destroy the interior to install air ducts. It is easier and cheaper to install compact supply ventilation: a ventilator or a breather. These are small devices that are installed on the wall and supply fresh air through a through channel. .

• Performance. According to the standards, the minimum productivity is 30 m3/hour for one person. To ensure there is enough fresh air for all family members, it is advisable to have a fan in the supply ventilation. The more powerful it is, the more fresh air it will bring in.
• Air filtration. City air is an explosive mixture of exhaust gases, dust, industrial emissions, and in the spring also allergens. A good cleaning system with several filters can contain this entire cocktail. For large particles - a class G (coarse) or class F (fine) filter, for small particles - more efficient class H filters (so-called HEPA filters), for harmful gases - carbon filters.
• Price. Compact devices are noticeably cheaper than central supply and exhaust ventilation. It costs about 100 thousand rubles and even more.
• Extra options. There are devices with heated air in the apartment, with different numbers of fan speeds and, accordingly, with different noise levels. Useful options - Wi-Fi module, CO2 level sensor.

Below is a comparative table in which you can evaluate different types of supply ventilation according to all the listed parameters.

Options for ventilation systems for apartments

Type of supply ventilation	Performance	Filtration	Extra options	Price with installation
Supply valve	from 0 to 54 m3/h for one room	No	No	RUB 5,900
Ventilator	from 10 to 160 m3/h for one room	or carbon filter, or coarse filter G3	no air heating low noise level, 7 speeds	RUB 22,490
Breezer	from 30 to 130 m3/h for one room	three filters: fine filter F7, HEPA filter H11, carbon filter	heating from -40°С to +25°С with climate control, average noise level, 4 speeds	RUB 28,900
Central supply ventilation	about 300-500 m3/h for the whole apartment	additional filters for an additional fee: coarse filters G3-G4, thin filters F5-F7, carbon filters	water or electric air heating, low noise level, at extra charge you can install modules air cooling and humidification	about 100,000 rub. + expenses for additional modules + repair costs

In all respects, compact supply ventilation is not inferior to central ventilation. As for the cost, for a large apartment it is cheaper to install 2-3 ventilators or breathers than to spend money on central ventilation. And the same amount for repairs after laying air ducts.

1. Choose a supply valve if you live in an ecologically favorable and warm region, want to protect yourself from street noise and minimal ventilation is enough for you (at the level of a slightly open window).
2. Choose a ventilator if you live in the same warm and environmentally friendly region, but you want more intensive ventilation compared to a slightly open window.
3. Choose a breather if you live in a noisy and dusty city and you need a lot of air - not only fresh, but also clean.