Children’s educational and educational institutions are subject to special requirements in relation to air exchange and ventilation. It is not allowed to have stagnant air in the premises — it affects the health and well-being of people (both pupils and employees). It is clean, air with optimal temperature and humidity indicators that allows you to ensure a healthy microclimate in the institution. This is ensured by well-organized, modern ventilation.
Why is the lack of forced ventilation dangerous in kindergartens?
Natural air exchange in the premises of the kindergarten is far from the norm. In this regard, there is a need to regularly open windows and doors. But this, in turn, leads to heat loss, and therefore increases the payment for heating.
Exhaust fan Helios MiniVent M1/100
Air consumption, m³/hour:
75, 90 |
Fan noise level, dB:
25, 30 |
- The occurrence of diseases in children, the manifestation of allergies.
- Spread of viruses indoors.
- A decrease in the level of oxygen in the body of children, followed by a decrease in immunity.
- The risk of drafts due to the need for constant ventilation in the kindergarten.
- Poor health, lethargy, and hence the slow development of children.
Features of ventilation in kindergarten
If we consider the issue from the technical side, the development of projects for the organization of ventilation in kindergartens looks the same as for any other structures with similar performance. But for kindergartens, both high-quality aeration and the prevention of colds are really important. The latter is provided by:
- Creating such a microclimate in the kindergarten group, where the risk for the reproduction of pathogens is minimized.
- Organization of the dynamics of air exchange, excluding drafts, hypothermia of children.
- Favorable humidity and temperature environment necessary for the normal functioning of the child’s immunity.
“Sanitary standards for kindergartens provide for an annual audit of the ventilation system. It is important to maintain air humidity in groups within acceptable limits (from 40% to 60%), in catering and laundry rooms up to 70% are allowed. Through ventilation in kindergarten is supposed to be carried out every hour and a half for at least 10 minutes. This should be done when the children are out for a walk — at the same time, half an hour before their arrival.
If in the warm season a one-sided influx of fresh air is allowed in the presence of the pupils of the garden, then in the cold season, artificial recuperation of the room is simply necessary. Regarding what temperature should be in kindergarten, there are special standards for different climatic regions. But +22°С in bedrooms and no more than 24°С in playrooms is considered optimal.
Tion Air Purifier Breezer Lite
from allergens, from viruses and bacteria, from gases and soot, from odors, from dust, from tobacco smoke, from animal hair |
And no matter how it is spelled out in the requirements of SanPiN, children throughout the day mostly stay in dry rooms at air temperatures that are far from optimal. And what is important here — the developers of the ventilation system are not to blame for this — after all, design standards in preschool institutions are not violated.
It is rather difficult to guarantee the necessary air exchange due to natural infiltration — both through and corner ventilation types are connected. But quite often there are violations in the form of:
- Non-working mechanisms for opening windows.
- Sealing gaps in order to keep warm in winter and in the off-season, etc.
From the above, the need for auxiliary forced ventilation clearly follows. During the heating season, the installation of local humidifiers is relevant. And at the same time, experienced specialists who have been working on the development of suitable air exchange schemes and establishing a microclimate to achieve improved air quality indicators should be engaged in the design and selection of a ventilation system for a kindergarten.
Air handling unit Daikin VAM250FC
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Modern version of kindergarten ventilation
Forced ventilation can look different. There is:
- supply and exhaust ventilation with a heat exchanger;
- devices with supply valves;
- combined method.
The first works according to this principle: 2 air flows are formed in the premises, with clean and already exhausted air. Coming from the street without fail passes filtration, purification from dirt, dust, viruses and other harmful microorganisms. Air enters the room only after heating to the optimum temperature. It is thanks to the heat exchanger that the exhaust air masses share heat with fresh flows and leave the room through the air vents.
Heat exchanger Prana 150 Eco Life
11–20, 21–35, 36–60, up to 10 |
Wall thickness from, mm:
Installation of an external grille:
from the premises |
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Heat recovery efficiency, %:
How is equipment selected?
Before proceeding with the development of the system, engineers carefully study the object. Which type of equipment will be used depends on the initial conditions and the number of rooms. What is important when designing according to the norms in kindergarten?
- Estimated temperature in winter.
- The rate of air exchange.
- The volume of air entering and leaving the room.
- Required humidity.
- The climatic zone in which the kindergarten building is located.
- Size of each room.
When drawing up the scheme, specialists make the necessary measurements, following the requirements and sanitary standards of the kindergarten, for each specific type of room:
- group rooms for children of different ages;
- dressing rooms;
- pools, etc.
“Ventilation of schools and kindergartens has nothing to do with asbestos-cement air ducts. The minimum air expansion rate is 50 m³, and the maximum air flow rate is 0.1 m/s. It is unacceptable to combine air ducts of dryers, bathrooms, a kitchen block with other rooms, and autonomous ventilation should be provided in the first-aid post, exhaust fans are also placed in the rooms.
Exhaust fan Gorenje BVX120WHS
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Definitely, professionals should deal with the selection of a ventilation system for kindergartens. They will do this not only taking into account sanitary requirements, but also to minimize energy costs. Modern equipment with recuperation is able to perfectly cope with the tasks set — to provide high-quality aeration, maintain the desired temperature and humidity indicators.
Monoblock systems are capable of transferring up to 70% of heat — this is a huge plus of installations with recuperation. Manufacturers have proven themselves well:
After the installation of the heat exchanger, the specialists instruct about the operation and maintenance. Often enough to clean the channels 2 to 4 times throughout the year. An exception is the catering department — here the requirements are strict (as in public catering points).
Use the services of our company Vencon — each customer will be provided with professional advice and competent organization of the ventilation system in the kindergarten in accordance with all standards.
Reliability of supply and exhaust ventilation Prana is guaranteed. We strive to minimize the client’s costs even at the design stage, while ensuring high-quality air exchange in bedrooms and playrooms, air disinfection in the kindergarten, its normal humidity and temperature indicators.