CLEANING AND DISINFECTION OF THE VENTILATION SYSTEM

40% of dirt and bacteria enter the premises through the ventilation system, if it is not cleaned in time. Against this background, we decided to analyze: do people know that the system needs to be cleaned and disinfect.

After the analysis, we came to the conclusion that most people turn to us with the need to buy ventilation (90% of all orders), and there are almost no calls to clean the ventilation (10% of orders). Such statistics do not make us very happy, because the level of pollution of ventilation becomes a public problem, and the public does not even know about this problem.

Installing a ventilation system in the room does not mean that the issue is resolved forever, and you can forget about the poor-quality air. How often do you think about cleaning this system? Did you know that a huge amount of dust, bacteria and dampness can enter the room from ventilation if it is not cleaned? How often should I clean the ventilation? It is better for you to learn about all the consequences of inaction, and the rules of cleaning before your own ventilation will harm you. Remember, ignorance is no excuse.

How often to clean the ventilation system
The norms of air exchange and microclimate parameters, which regulate a comfortable temperature, humidity and speed of air movement, are prescribed in the state construction (DBN) and sanitary (SNiP) rules. According to these standards, it is necessary to check the quality of ventilation once a year systematically, and at the same time cleaning and disinfection of the ventilation system is performed. Moreover, in DBN B.2.5-20 it is clearly stated that cleaning should take place no less than once a year. Also in the SNiP it is indicated that it is necessary to observe the maintenance of the equipment at intervals, which is stated in the instruction manual of each device.

In any case, air ducts and air ducts should ensure the passage of a standard amount of air, and the entire volume of air in the room should be changed to a new one every hour. If the air ducts are very dirty, this will become unreal, since a layer of dirt reduces the amount of air that can pass through the system.

Why need cleaning ventilation
Over time, a layer of dust, dirt deposits, external debris, grease or industrial pollution is deposited with an increasingly thick layer in the ventilation ducts. This leads to the development and spread of pathogenic microbes, bacteria, insects or ticks, which is absolutely unacceptable, especially in residential areas. In systems of mechanical ventilation through clogged channels, viruses and microbes can spread throughout the premises, which immediately affects the working ability and well-being of many people. It is worth noting that the dust content of the ventilation channels of the systems immediately increases the possibility of the occurrence and spread of fire, in spite of the special fire valves installed.
Cleaning ventilation: why is it needed

The simplest problem of ventilation in the apartment - a neighbor rebuilt partitions, “bricked up” the ventilation duct. A part of the exhaust duct collapsed, a brick or something else got into the exhaust shaft and blocked the ventilation. Completely lost traction after the reconstruction of the house. In such cases, the specialists in ventilation check the parameters of the thrust, eliminate the damage, and install, if necessary, the supply air or exhaust devices of the desired performance.

In all systems of supply and exhaust ventilation, especially in the installed in the technological workshops or in medical, educational, children's institutions, strictly regulated service is required. Each responsible ventilation system, depending on its type, must be periodically maintained and cleaned according to sanitary standards. All work is carried out according to the established regulations (procedure) and once every 4 months, half a year, or monthly, depending on the load, degree of pollution, operating modes and operating conditions of the forced ventilation system.

Approximately systems with natural ventilation need to be serviced once every three years, with mechanical ventilation at least once a year, and with dangerous operating conditions even once a month.

Types of pollution
Ventilation can be contaminated for various reasons, on which it depends on what method to clean this or that system, what means to use. Here is a list of the main types of pollution:

Types of pollution of the ventilation system Conventional dust and dirt from the street / other rooms, which accumulates in the air duct or on the filter;

Mold and fungus, water plaque - are formed when humid air moves in the duct, or when moisture condenses inside the duct due to temperature changes;

Rust and its deposits are caused by moisture, and are able to eventually lead air ducts / equipment to failure, or the formation of cracks;

The increase in fat, which is heavily clogged duct, filters, check valves, and system performance decreases. This happens most often in the kitchen in a residential building or in a restaurant, but requires regular cleaning, even a little more than once a year. Especially you need to clean the grease trap - this is done once a month, and then more often;
Deposits of chemical agents and reagents in the system, which is installed in laboratories, chemistry classrooms, in research facilities. It is important to regularly neutralize all harmful components, otherwise the presence of a person in such a room would be excessively dangerous;

It is important to maintain medical facilities and buildings regularly, in particular, the ventilation system should be cleaned and disinfected once every six months, or once a year. Indeed, in such buildings a large number of bacteria lives, so the hood must constantly operate with sufficient power, and when it is polluted, this is difficult to achieve. In addition, the sterility factor is not observed, if dust and dirt constantly flies from the ventilation, and bacteria stagnate in the wards;
Pollution after a flood or fire. This is a separate type of pollution that occurs suddenly and irregularly, but requires no deferred cleaning. Since in the event of a fire, all the clots of smoke and its deposits will accumulate in the duct, then in fact you will breathe fumes and chemicals, which is not good at all. During the flood, a huge amount of humid air passes through the air duct, at which condensation occurs in copious form. This will lead to a fungus inside the system, and later - to a fungus in the house, and you will not even understand where it came from, because the flood was long ago.

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