How to clean the ventilation in an apartment building. How to clean and check ventilation in an apartment building

The microclimate of the apartment depends on the intensity of air circulation, which is provided by natural or artificial ventilation. Majority apartment buildings equipped with a natural exhaust system. It often breaks down. Fungus and mold appear in bathrooms. The humidity in the apartment increases, the walls in the kitchen quickly darken. There are several ways to improve air exchange, but the main one is to clean the ventilation in the apartment.

Reasons for unsatisfactory operation of the air exchange system

Cleaning the ventilation in an apartment building does not always change the situation. Therefore, the first stage is to determine the source of the problem. There are a number of main reasons:

1. Plastic double-glazed windows or new sealed doors. Ventilation apartment building occurs due to the difference in temperature and pressure inside and outside the room. Old wooden windows and the doors let in a lot of fresh air. Due to this, the room is ventilated.
   New double-glazed windows and doors hermetically seal the room, disrupting the natural flow of air exchange. A micro-ventilation system installed on the plastic windows.
2. Clogged ventilation ducts. In an apartment building, the ventilation system consists of the main and adjacent branches. The main channel becomes clogged due to partial collapse of the masonry or the entry of large debris.
   Adjacent branches leading into the apartment reduce the air throughput due to dirt and soot accumulated on the walls, an old grate or a collapsed piece of plaster.
3. Connecting a powerful hood. If a neighbor has brought a forced forced exhaust into the main ventilation duct, then in other apartments the balance is upset, the air movement almost completely stops.
4. Deterioration of air movement in summer. Due to the small temperature difference between the residential area and the street. Installing an air conditioner or exhaust fan will help.
5. Design or construction errors. There are times when neither cleaning nor forced ventilation won't help. The reason is a violation of the structure of the ventilation duct.

There are several ways to independently determine the performance of the ventilation system:

Options for cleaning ventilation in an apartment

After clarifying the reason bad work systems, let's look at how to clean the ventilation in an apartment.

According to the housing regulations, only organizations with permission to carry out such types of work have the right to service ventilation in an apartment building. Residents are strictly prohibited from performing any actions with the building's utility networks.

On the other hand, no one bothers to clean their section of the ventilation ducts up to the junction with the common riser. Let's consider several ways:

Disinfection measures

After cleaning the ventilation in an apartment building is completed, it can be disinfected. It is not necessary to call specialized services. A simple treatment of the walls of the channel with a grate with a chlorine solution will kill all microbes.

It is an integral part of the ventilation system. The hood quickly becomes contaminated with grease, which reduces its efficiency.

Cleaning the hood in the kitchen

Briefly, cleaning is carried out in several stages:

• Disassembly. The cover is removed metal grill, air filter, air duct.
• Washing parts. Metal and galvanized parts are washable warm water with the addition of cleaning agent or soda. They are then rinsed under cold running water.
• Drying parts. Each part of the hood is wiped with a dry towel.
• Replacing the filter. The air filter can be washed in a mild soap solution or replaced with a new one.
• Assembling and installing the hood in its original place.

Conclusion

Cleaning the ventilation in an apartment is possible without the involvement of third parties. All necessary supplies, materials, and tools are sold in hardware stores. The main thing is to take your time, follow the instructions, and don’t come up with something new.

Clean room ventilation is invisible to people inside the building. Rarely does anyone think about the operation of the air exchange system while everything is functioning properly. Therefore, ventilation cleaning begins only when the living space is filled with dampness, mold, unpleasant odors, and the windows are covered with “dew.”

A person’s well-being directly depends on the surrounding space as a whole, and access to clean air in particular. The body reacts almost instantly to a lack of oxygen in the room: performance decreases, chronic ailments worsen, and high fatigue is observed. This is all due to clogged filters and, as a result, poor air exchange. Therefore, it is necessary to clean the ventilation

Historical retrospective

Until the end of the 18th century, air ventilation was reduced to the banal ventilation of rooms, rooms or halls. All that was required was to open the door or windows. And there was no need to clean the ventilation. At a certain stage in the development of society, this state of affairs suited everyone. House owners turned a blind eye to the dirt and dust that freely penetrated into their houses.

The first wells for air exchange between the internal space and external environment appeared only at the end of the 18th century, at which time they began to use primitive equipment for cleaning ventilation. Thanks to the new architectural solution, the quality of life of the then population improved significantly.

Chimney cleaning was paid decently, and chimney sweeps were respected in society

The emergence of something new is certainly accompanied by the emergence of associated problems. This rule turned out to be valid for the system under consideration. A new task arose - cleaning the ventilation. Brick air exchange wells were laid out in the usual way, by analogy with a stove chimney, and therefore after several months of active use the hole was “overgrown” sedimentary rocks from cobwebs, dust, soot and insects.

Chimney sweeps used metal “hedgehogs” to remove soot

The development of technology and an increase in the standard of living of the population contributed to the formation of a new profession for that time - chimney sweep. The frequency of cleaning was high due to the prevalence stove heating and fireplaces, and therefore the occupation turned out to be very profitable, although dusty.

How to Determine When to Clean Your Ventilation System

It is preferable to organize ventilation in an apartment building through a forced-type installation. But in domestic realities this is the prerogative of comfort and premium class housing. The lion's share of houses old building equipped with conventional air ducts with a common riser channel. We are talking about the cheapest and simplest connection scheme, but the ventilation ducts still need to be cleaned, and regularly.

A logical question arises - when to do “cleaning” work, by what criteria to determine that the “X” hour has struck?

Before cleaning the air ducts, it is important to determine the degree of contamination

Several signs indicating that it is better to hurry up when cleaning the ventilation in an apartment building:

• V summer season rooms turn into “thermos”; normalize humidity conditions fails even with regular cleaning;
• Dust actively appears in the living room;
• the surface of the filters, as well as the grille exhaust system covered with a layer of viscous soot (typical of kitchens);
• double-glazed windows constantly “cry”, condensation is noticeable on them;
• All rooms feel damp, there is mold and mildew on the walls.

Signs of a dirty ventilation system

For all of the above, the only reason is often a clogged air duct. It is important that ventilation ducts are cleaned at least once every 2 quarters. It is better to delegate the relevant work to specialists; this problem cannot be solved on your own. The snag may be located outside the apartment.

Checking the functionality of ventilation ducts

Experts identify several effective ways, allowing to determine the quality of air ducts and the degree of their contamination. The simplest and most reliable is to direct the flame of the lighter into the hood grille. Be extremely careful if inner space The mines are filled with fine dust and cobwebs, there is a high risk of their ignition, spread and fire.

The flame reacts sensitively to the presence of draft in the ventilation duct

Cleaning the ventilation in the apartment is not required if the flame goes out or is directed inside the duct. If there are no visually noticeable deviations, immediately contact the management company or the housing office for help. The optimal frequency of cleaning is once every 6 months, at least, preventive examinations are once a month.

How do special services check ventilation?

Maintenance of ventilation systems is a responsible activity entrusted to the management company, due to its belonging to the common property of the building. For this purpose, the Government of the Russian Federation has developed a special Resolution No. 410. In fact, these are a set of rules and regulations for the management company for cleaning ventilation in apartment buildings, preventive examinations.

A specialist can accurately determine the degree of contamination of the air duct

For routine maintenance prerequisite is that the company’s specialists have a standard license. Inspection activities are carried out quarterly, in accordance with the approved plan, during repair and restoration activities, as well as in case of reconstruction or change in the configuration of channels, or lack of traction.

Our specialists have professional instruments for testing the functionality of the system and equipment for cleaning ventilation. The channels are periodically disinfected. To remove contaminants, pneumatic brushing machines and other devices are used.

Ventilation cleaning: equipment used

Cleaning ventilation ducts is a responsible undertaking consisting of several stages. At the preliminary stage, the specialist determines the degree of contamination of the local air duct, selects the best way eliminate the problem if it is detected. Then a decision is made on the advisability of a common channel (coordination of work with other residents of the house).

Equipment for cleaning ventilation systems

Ventilation cleaning is carried out special equipment:

• chemical reagents for dissolving stubborn stains in hard-to-reach places;
• electromechanical device;
• vacuum devices;
• devices equipped with several brush mechanisms operating on a pneumatic drive;
• powerful industrial vacuum cleaners.

IN in case of emergency You can clean the air ducts of the ventilation system yourself by using a flexible shaft with a brush connected to an electric drill.

Not only household treatment, but also industrial cleaning of ventilation and ventilation systems is becoming in demand. For such work, highly specialized equipment is used, with the help of which the level of contamination is assessed through a video camera, after which the channel is cleaned and disinfected. During the process, specialists remove all debris, even fat.

Cleaning ventilation yourself: effective methods

In accordance with the current rules for the operation of housing, apartment owners are prohibited from interfering with the operation of engineering and main systems. Cleaning of ventilation air ducts is the responsibility of management companies, which can only delegate them to licensed services. But we should not forget that “the rescue of drowning people is the work of the drowning people themselves.”

Do-it-yourself air duct cleaning

Every owner should not only know how to clean the ventilation in an apartment, but also be able to do it. The work is simple in nature and consists of several steps.

1. In all rooms where ventilation grilles are installed, they are removed. Accumulated dirt, sticky grease and dust particles are removed. I think there is no need to focus on how to wash them with detergent.
2. The area around the hole is treated with a plastic or metal scraper.
3. To clean the ventilation system, it is better to use a powerful vacuum cleaner, placing the hose in the channel. It is important to “walk” over the entire internal area of ​​the hole.
4. After completing the cleaning activities, the accessible area of ​​the air duct is wiped damp cloth, the grille is put in place.

Sleeve of a powerful vacuum cleaner with a fixed brush

To deal with stubborn grease stains, you should contact a specialized company. Often their anti-raid arsenal consists of chemical substances, effectively eliminating residual products that cannot be gotten rid of with conventional means.

Products used in air duct cleaning

For local cleaning of ventilation systems, protective grilles, and ducts in the house, any detergent is suitable. Fat layer It is better to eliminate it with specialized thick consistencies designed for washing kitchen hoods. In this case, you cannot do without disassembling the air duct, but the cleaning class upon completion of the work will be much higher. Treating problem areas with a disinfectant (hydrogen peroxide is quite suitable) will get rid of germs and spores “traveling” through the system.

Detergents do an excellent job of removing grease and dirt in the ventilation system

To clean a branched ventilation system, you will have to resort to chemicals and professional equipment. It is impossible to do without appropriate solutions in private homes, country cottages, where the channels are located under the ceiling cladding. And if it’s quite suitable for cleaning filters household chemicals, then to solve narrowly targeted problems you will have to buy professional compounds, which is not always profitable.

Air duct cleaning cost

Most owners who receive a comprehensive answer to the question of how to clean the ventilation in an apartment are wondering how much the corresponding services will cost if they contact a cleaning agency. The price factor depends on the region in which the company is located, the remoteness of the object, the list necessary work.

Below is the price list for the services discussed in this article:

Cleaning ventilation and air ducts will cost much less if the company is contacted not by the owner of one apartment, but by a representative from the entire building. In this case, you can count on a significant bonus. If you order regular preventive examinations and become a regular customer, the final cost of the work will be much lower.

Management companies are reluctant to contact the relevant services. It’s easier for them to turn a blind eye to the existing problems and feed the residents “breakfast”. Laws, regulations and rules are not written for them, especially when it comes to old houses.

Professional cleaning of ventilation air ducts

You should be extremely careful when cleaning yourself. In pursuit of imaginary savings, it is easy to disrupt the functioning of the system. Don't skimp on own health and the health of your family.

Nobody pays attention to ventilation if it functions properly. As a rule, exhaust vents are installed in the kitchen, bathroom and toilet. Air currents arise due to the difference in temperature inside the building and outside. In this case, an influx of fresh air is necessary to ventilate the premises.

In the event of malfunctions, ventilation must be checked.

Kitchen

In this room, food is prepared and gas combustion products and specific odors constantly appear. If there is a malfunction in the hood, they spread to all rooms and remain there for a long time. In addition, soot generated from gas combustion will be deposited on all surfaces. Most of it stays in the kitchen.

Bathroom

Poor ventilation in the bathroom leads to increased humidity. At the same time, in the corners, on the walls and ceiling, dark spots mold, which is harmful to health.

High humidity is immediately felt by a person, and in this case it is necessary to check the ventilation.

Toilet

If the hood in the toilet is clogged, being in it becomes unpleasant, and odors from the bathrooms will spread throughout all rooms of the apartment.

How to check for traction in a simple way

Ventilation is checked periodically as soon as dust appears on the grilles. To do this, they are removed and washed from dirt. After the grilles are installed back, the transom or window is opened slightly in the kitchen or in the room nearby. If the check is carried out in the bathroom or toilet, leave open doors to create air flow. To check the efficiency of the hood, a sheet of paper is applied to it. He should be “attracted” to her, which is a signal of the presence of traction. Piece toilet paper should be able to stay on the grill on its own. Another way to check the presence of draft is by deflecting the flame of a lighter or candle. The procedure is repeated in all areas. Cleaning the ventilation is required if the sheet is not attracted to the grille.

You need to know that in hot weather the draft in the ventilation duct worsens and it is useless to check it. It depends on the temperature difference between indoors and outdoors. In this case, forced ventilation is turned on.

How to properly organize ventilation in an apartment

The lack of fresh air flow into the apartment can also be the cause of poor air circulation. This became especially noticeable with the replacement of windows with plastic ones, which are distinguished by their tightness. In this case, residents need to resolve this issue on their own. Ventilation is improved as follows:

• frequent ventilation of premises;
• Installation of air conditioner;
• use of supply valves;
• use of supply and exhaust forced ventilation.

The reason for the lack of draft may be due to residents living upstairs, or when the system is overloaded from an enterprise built on the ground floor, for example, a store or cafe. It even requires checking the ventilation, since foreign odors appear in the apartment. In both cases, you must contact the Housing Office for help.

Rules for cleaning ventilation ducts

Cleaning the ventilation with your own hands is prohibited, since the shaft is serviced by specialists from the management company on the roof or technical floors. People usually come to her with complaints about lack of traction. When calling specialists, you should warn your neighbors about this, since when cleaning the mine through ventilation holes Dust may fall into the apartments.

When doing an independent ventilation check, you are only allowed to clean the duct leading from the apartment to the main shaft. To do this, you need to perform the following operations.

1. Move the furniture, cover the floor and cover the wall in the work area.
2. Remove, clean and replace the grille if necessary.
3. Wearing gloves on your hands, carefully remove debris from the ventilation duct and remove the remaining residue using a vacuum cleaner. It is better to remove debris with a tool such as a spatula to avoid injury from sharp fragments.
4. Reinstall the grille and check for draft by opening the window.

Additional ventilation device

When the ventilation of the house is working properly, but there is not enough fresh air, the following measures need to be taken to improve the microclimate.

1. Plastic windows are sealed, but it is advisable to purchase window systems with a micro-ventilation function.
2. The supply of fresh air can be ensured using valves, grilles, filters, air heaters and forced supply fans.
3. An air conditioner will partially help by refreshing and drying the air.
4. Install

When choosing a method for ventilating rooms, you should determine its effectiveness and which devices are already working. A check must be done first exhaust ventilation and the need for installation was identified additional equipment, improving the quality of its work.

No matter how efficiently the hood works, an influx of fresh air is necessary. To do this, valves are installed behind the batteries. The diameter of the holes facing the street is 6-10 cm. A plug is installed in them, which can be manually or automatic control. The incoming air can be cleaned using filter elements installed in the valves.

Ventilation is classified according to the following criteria:

• forced or natural movement of indoor air;
• exhaust or supply type of device;
• what type of service is provided: local or general;
• the presence of channels for air transmission;
• stacked or monoblock design.

The choice depends on the area and purpose of the premises, the amount of equipment and people in it, and the type of their activity. In all cases, preference is given to natural exhaust, since this is the most economical option.

How to check ventilation systems

Ventilation systems are subject to inspection, which can be emergency or scheduled. Their operation is checked using an anemometer. It is introduced into ventilation duct while ensuring air flow into the room.

In the shaft branches, the air speed must be at least 3 m/s.

The measurement results must be recorded.

They are recorded by instruments, and then a ventilation inspection report is drawn up. It should provide data on how efficiently the system operates and whether it complies with design standards.

Conclusion

Checking the ventilation in an apartment is a simple operation that needs to be done to maintain an optimal microclimate.

In the event of violations in its operation, you need to know what the owner of the home can do and in what cases he should contact the management company.

Ventilation is the only way to remove excess moisture from a room. Not only does moisture leave, but also stuffiness enters Fresh air. Of course, you need to regularly ventilate the rooms of your apartment, but ventilation still bears a lot of responsibility. In the apartment, ventilation is located in the toilet, bathroom and kitchen.

If the ventilation ducts in the toilet become clogged, it begins to work in the opposite direction: not only will you not be able to remove unpleasant odors, but all the “odors” will come from the bathroom of your neighbors in the riser.

In case of a clog in the bathroom, while taking a bath or shower, the room is steamed, the moisture does not leave, the hot air dries out slowly, and this increases the likelihood of mold and mildew forming on the walls and ceiling.

As for the kitchen, odors will not go away there either, as well as the consequences of use. gas stove– combustion products. It is necessary to install a hood and regularly clean the ventilation ducts.

Cleaning is done regularly, at least once every six months, but it should be done as needed. In order to determine the need for cleaning, it is necessary to carry out the following procedure step by step:

1. Remove the grate on the wall, unscrew it, and wash it to remove dirt and dust. And then install it in place.
2. Attach a piece of paper to the ventilation grille after opening the doors, window, etc. If the leaf is attracted, the traction is good and everything is fine, if there is no spruce, there is a blockage.
3. Another reason for the lack of traction, besides blockage, may be the redevelopment of the room of the neighbors above. If the fact of such arbitrariness is confirmed, you will have to call specialists and write complaints. It may not be nice, but their self-will will lead to a lot of problems. It's better to get them to fix the problem than to constantly deal with fungi.
4. If the ventilation in the kitchen still has poor draft after cleaning, and the neighbors have nothing to do with it, then the problem is most likely in the recently installed plastic windows. Sudden tight sealing requires ventilation at least sometimes.

How to clean the ventilation? Of course, you are not allowed to do the entire amount of work yourself, but everything that depends on you must be done, and besides, a sudden inspection may fine you for blockage and dirt.

To clean the ventilation shaft before the general house, first protect the plumbing from dirt, cover it, and move away any furniture. Remove the grille, wash it, degrease it, and you can replace it if it is worn out. Cover with gloves and carefully remove all debris from the ventilation duct. We clean the walls from dust and cobwebs with a spatula. We do everything carefully so that insects do not suddenly run out or stumble upon anything sharp. You can clean the channel with a vacuum cleaner. Now we put the grille in place, open the windows and doors and check the draft.

Ventilation of an apartment building is a complex system ventilation ducts that permeate the entire building, entering each apartment. It is through this that air is removed from the premises. But over time, ventilation ducts and shafts become smaller in cross-section due to debris, fat and oil deposits, which leads to a weakening of the outflow of air masses. This means that the ventilation of the house begins to work incorrectly. That is, the time has come to think about the question of how to clean the ventilation in the house.

Why clean the ventilation?

It is necessary to maintain the correct operation of the ventilation system for purely hygienic reasons. After all, weakening the hood leads primarily to a decrease in air exchange, which is legal sanitary standards residence. The exhaust air released into the ventilation shaft takes with it dust particles, excess humidity, as well as various kinds of microorganisms that negatively affect human health.

Therefore, there is a special attitude towards cleaning the ventilation in the apartment. But, as practice shows, apartment owners practically do not deal with this. Rarely does anyone try to do anything to increase air flow. But this doesn’t help much either. Therefore, you need to understand the process of cleaning ventilation, and if possible, carry it out regularly. If not on your own, then call a specialist at least once every two to three years.

When to clean

It is clear that few people open the ventilation grille to look into the ventilation duct of the building. Therefore, it is worth paying attention to some signs that the ventilation duct has become smaller than its original size. Here are a few such signs that are very noticeable.

1. Dust and dirt accumulate around the ventilation grille and on it, and cobwebs appear.
2. After wet cleaning, dust immediately settles on the surface of the floor and furniture.
3. In the summer, even when it’s hot, the apartment doesn’t get cool.
4. If there are drafts at open windows or front door became significantly weaker or disappeared altogether.

It will definitely tell you that cleaning the ventilation in the apartment is necessary. Especially if it has been in use for many years. Bringing it to the ventilation opening will help determine the need. paper napkin. If the napkin remains near the ventilation duct, it means the ventilation is working well. If the napkin does not hold, then you need to sound the alarm. The duct is clogged and the ventilation is not working.

You can also check by placing a piece of toilet paper or newspaper paper against the opening. If it sticks to the grille, it means that the ventilation is working according to its parameters. If you fall, then the problem is serious, and it must be solved urgently.

In general, to bring to such a state ventilation system an apartment building is not allowed. After all, this network has several levels equal to the number of floors. And channels extend into each apartment from the vertical shaft. Therefore, a situation also happens when the horizontal channel from the apartment seems to be clean, but the air outflow is weak. The reason is that the vertical common channel is clogged. And here everyone will not be able to help themselves, because cleaning of the general ventilation shaft is required, for which they are responsible Management Company. And for her, exact standards have been established for how often to clean the ventilation of an apartment building, which, unfortunately, she does not comply with.

Causes of clogged ventilation ducts

The main reason for clogging is large cluster dust, dirt and grease on the walls of canals and shafts. Unfortunately, this is how the ventilation of an apartment building is designed, and it is difficult to get into. These are narrow channels through which exhaust air from apartments, especially from the kitchen and bathroom, goes outside. Moving through the system, the particles located in it settle on the walls of the channels, increasing in thickness over the years in the form of a mud layer. Hence the reduction in the cross-section of the air ducts.

Another reason is the collapse brickwork, from which the ventilation shaft is constructed in many houses. Repairing masonry is very difficult, and sometimes possible, so you have to live with such incorrectly functioning ventilation.

The third reason is small animals and birds that got inside the ventilation and died. Some birds build nests in canals that cover part of the opening.

The fourth reason is established kitchen hood, the air duct of which is cut into the ventilation duct. The reason is quite serious, because the ventilation of an apartment building itself must ensure air exchange inside the apartment at the rate of 90 m³/hour. And this is 5-10 times less than the performance of modern hoods. That is, when turned on household appliance is formed in the ventilation shaft overpressure, which pushes the air in it through channels into neighboring apartments. That is, we can no longer talk about ventilation of an apartment building.

How to clean the ventilation in an apartment with your own hands

Let's move on to the main question of the article, which has always been relevant, and today many owners of city apartments ask it: how to clean the ventilation in the apartment with your own hands. As mentioned above, if management companies fulfilled their duties exactly, then there would be no need to clean the ventilation yourself. But the situation is such that no one wants to deal with your apartments except you. Therefore, you will have to carry out all activities without a specialist.

Although it should be noted that cleaning the horizontal channel is an ineffective operation, because without cleaning the vertical riser, these are just cosmetic measures. But even they can slightly increase air draft. So what you need to do:

• the ventilation grille is removed, which must be washed with a household detergent, because fat and oil deposits are unlikely to come off with clean or soapy water;
• remove the cobwebs with a broom or rag, try to do this by completely inserting them into the canal;
• arm yourself with a spatula and scrape off dirt deposits from the walls of the canal; under no circumstances use chemicals, they won't help here;
• take a long wire and insert it as far as possible, that is, this way the arm lengthens, additionally tie a pipe cleaner to it;
• After this, you need to insert the hose from the vacuum cleaner into the channel and turn on the latter to remove accumulated and collected debris.

There are no other options to clean the ventilation duct from your apartment. Of course, if you don’t invite specialists armed with special equipment. When carrying out this work, you must be careful. Caution in this matter comes first, because inside the ventilation passages there may be wasp nests, homes of lizards and other small rodents.

Where to go if you can’t clean it yourself

It should be noted right away that cleaning the ventilation in an apartment building is the responsibility of a special organization that has entered into an agreement with the management company. It is prohibited to clean the vertical ventilation shaft yourself. And it is impossible to do this qualitatively with improvised tools and devices.

Therefore, you need to come to the office of the management company and leave a written statement, indicating the entrance number and house number. The thing is that one vertical ventilation shaft is often installed per entrance. Therefore, it will be easy to search for it if the entrance number is indicated.

Specialists who arrive on call must first take measurements of the air speed in the ventilation system. One froze from the side of the apartment, the other from inside the mineshaft. After which it is determined what activities will be carried out. By the way, in addition to cleaning, it is proposed to carry out disinfection or repair.

Please note that the question of who should clean precisely determines the responsibilities of the parties. That is, the management company does not do this itself. She simply monitors the requirements of the residents of the apartment building and their implementation by her employees or persons with whom there is an agreement to carry out certain events. But residents must demand the work be completed from the management company.

Let's start by giving main advice– You cannot clean the ventilation in the apartment yourself. But if there is no other way out, then do not climb into the vertical riser. Your options are limited, so you can only clean the horizontal ventilation duct that connects the shaft to the apartment. Now you know how to do this.

Sometimes apartment owners themselves are to blame for the fact that internal air exchange is reduced or completely absent. During the repair process they are closed finishing materials ventilation openings. Firstly, this cannot be done. Secondly, if this does happen, then try to correct the situation and bring it back to normal. Otherwise high humidity, unpleasant odors, mold and fungi cannot be avoided.

If you decide to clean the air ducts yourself, then try to prepare thoroughly for this event. To do this, you will need the tools and accessories described above, as well as a reliable stepladder.