Rating of the best ventilation diffusers for 2024

Most people often underestimate the importance of a ventilation system in their rooms. This happens because it is quite difficult to feel the presence of good ventilation. But one has only to slightly violate the relevant building codes in the field of installation of the ventilation system, as the room will simply become unsuitable for people to stay - the air in it will cease to be renewed and unpleasant odors will begin to accumulate in it.

Today, when constructing buildings, any contractor strives to install the most efficient and economical ventilation system. At the same time, as a rule, contractors use non-standard solutions to optimize financial costs. The most popular such solution is the equipping of ventilation ducts with additional features, namely, the function of additional air distribution using anemostats.

General information about anemostats

Anemostat (aka air distributor) is a special device that allows you to achieve a confident and effective distribution of the air entering the room. Such devices successfully resist the occurrence of drafts and are installed both in supply and exhaust installations and in air conditioning systems. Also, anemostats proved to be excellent in heating systems by means of air flows, which is why they began to be widely used in premises for various purposes - from industrial to public. The main purpose of the device is to prevent aerial convection, that is, a process in which air jets cause increased turbulence, thereby reducing the level of comfort for the person present in the room.

The very shape of the anemostat is designed to damp air vortex flows, because the air passing through them is forced to flow around the tire of the device, due to which it is evenly dispersed. In addition to correcting the direction of air jets, anemostats can also adjust the volume of new air entering the room, or even stop it altogether.But the functions of this ventilation device are not limited to just one practical application - it can also play a small aesthetic role - being competently disguised inside the ventilation channel, it can harmoniously fit into the interior of the room and successfully complement its modern design.

By their design, the devices are quite simple. Their body is a shortened piece of pipe, with a spacer installed inside that supports the adjusting screw. The mounting flange extends up to the screw and is in the shape of a flattened circle (a bit like a dinner plate). The flange itself is fixed on a screw and is able to move along the device body, as well as rotate around its own axis.

By turning the "poppet" clockwise, this part is pushed forward, thereby increasing the air gap. If you rotate it in the opposite direction, then the gap will decrease and the level of the incoming flows will decrease. It is the ability to adjust the volume of incoming air that distinguishes the diffuser from the diffuser - these types of air diffusers are often confused with each other. In addition, diffusers can be either round or square, while anemostatic devices are made only in a round shape.

There are models for supply ventilation systems, which are equipped with not one, but at once a pair of "plates", where one differs from the other in a more concave shape and increased dimensions. A device of this design is intended for a more even distribution of air flows inside the room and is mounted on the air ducts of reinforced ventilation devices. In addition to the classic configuration, anemostatic devices can be equipped with filtration systems that will be responsible for retaining dust and small mechanical debris that comes along with the street air. The appearance color of the considered devices can be different - from a simple color variation to imitation of any material (for example, wood). Therefore, it will not be difficult to choose the appropriate model for a specific interior.

The standard diameter of these devices can be from 8 to 20 cm, and the maximum stroke of the "plate" inside the body is determined by the size of the model itself and can be close to 23 millimeters. For the production of all parts, lightweight materials are used: plastic or aluminum, wood or galvanized steel. Plastic samples are very popular, because they are distinguished by increased moisture resistance, weigh extremely little, and are absolutely not subject to corrosive processes. Another distinctive plus is that they can be easily painted in any color or decorated to match the desired material. Installation of plastic devices is easy enough, in the future they do not require any special care, and they simply cannot rot. Also, the consumer is attracted by their economical price and wide consumer availability. However, their main drawback is the low strength of the body and the likelihood of its melting when trying to remove super-hot air flows, which makes them impossible to use in some industrial premises (for example, smelting shops).

Existing varieties

According to their functional purpose, the considered devices are divided into three types:

• Supply samples are distinguished by the fact that their "plate" is concave inward and has a reduced aerodynamic resistance. Air currents passing through such devices will be distributed smoothly and at the same time evenly. The models can be integrated both into the wall and on the ceiling, and the supply air is supplied to them through a diffuser, which is built into the duct.
• Exhaust samples are equipped with rounded, smooth covers, which are able to efficiently evacuate used (old) air masses.The hood models are selected taking into account the functional purpose of the room and the characteristics of the dirty air. Devices made of plastic / metal in such systems are used quite often, but wooden samples are almost never used, which is associated with restrictions on the level of humidity and the degree of heating of the exhaust air streams.
• Universal samples can function both in exhaust and supply systems, as they are equipped with two diffuser hoods. When installing them in the hood, you can use two slots at once, while when implementing the inflow system, one hole for the hood is blocked. These samples are controlled only mechanically (manually), the automatic control setting is not applicable to them.

Differences between supply, extract and universal models

The indicated variations of the anemostats will differ in the different direction of movement of the air masses. Air supply devices are used in ventilation systems of the same name and are responsible for uniform air distribution under the ceiling. The "plate" in the supply units differs from the exhaust units in that it has a more concave shape inward - this is what prevents the creation of discomfort for the person in the room from the movement of the arriving air masses. The “plate” of the exhaust diffuser has a rounder and smoother surface, which makes it easy for air flows to bend around it and redirect to the exhaust duct.

It is better to consider the characteristics of universal samples on the A 200 VRF model, which has the largest dimensions among the devices under consideration. Both the exhaust and supply forms of the "plate" are compiled in it. When using them, it should be remembered that for the hood you need to use both gaps, which are formed by both the supply and exhaust systems. And for the supply, you need to use only one slotted gap, which is formed by the supply "plate", and the exhaust valve, in this situation, must be closed.

Another difference is that if an exhaust diffuser is integrated into the supply system, then the air will not be evenly distributed under the ceiling, but, going around the device, will rush vertically downward. Therefore, for each system it is necessary to use the appropriate device.

Correct selection of the air distribution unit

The choice of the most optimal variant of the anemostat should be based on the determination of a number of the following factors, such as:

• Manufacturing material;
• Unit dimensions;
• Working range of the "plate";
• The area of ​​the slotted holes.

All of the above parameters completely depend on the type of premises to be served.

Practicality and durability of the material of manufacture

Hardware. They are distinguished by their durability and service life. An additional plus will be the stylish appearance, which is perfectly combined with the newfangled trends in interior decoration (for example, the "modern" and "high-tech" styles). The downside of metal units will be their heavy weight and some difficulties in installation. At the same time, metal devices perfectly conduct highly heated air, therefore, it is advisable to install them in saunas and baths, boiler rooms and combustion chambers.

Plastic products. They are usually used in domestic premises, commercial and office buildings, public institutions. Such units have proven themselves perfectly when working in rooms with high humidity (for example, swimming pools and showers, kitchens and laundries, various bathrooms). Their main advantages undoubtedly include:

• Increased moisture resistance - absolutely not subject to corrosion (unlike metal) and do not rot (unlike wood);
• Extreme light weight and ease of installation;
• Variety of lineup and colors;
• No need for frequent maintenance and unpretentious maintenance;
• Economical price.

However, their main disadvantage is the presence of a fragile housing, as well as the fact that they are not intended for pumping hot air streams.

Wooden crafts. It is possible to meet them infrequently, they are used only when the style of the serviced premises requires it. They will look organic in wooden houses, separate log cabins or saunas, but there they will require frequent preventive maintenance.

Features of the assessment of technical characteristics

After selecting a model according to the conditions of future operation, determining the required material of manufacture, one should be puzzled by the selection of the following technical parameters, namely: the total diameter, dimensions of the slotted hole and the valve stroke.

Overall diameter. The size of the section of the head of the device itself must be correlated with the size of the ventilation duct. For example, a 100 millimeter valve will fit a corresponding 100 millimeter duct.

Slit hole... This parameter sets the capacity of the unit. The difference in performance depends on the clearance adjustment by the flange. In relatively small models with a diameter of 80 millimeters, the boundary cross-sectional area of ​​the living is 0.002 square millimeters, in units of 200 millimeters in size, this figure can reach 0.009 square millimeters.

Running stock. This parameter determines the maximum opening, that is, the movement of the lamp along the "normal" line. The working range of the device will be the wider, the greater the stroke of its valve. Depending on the model, the boundary value can reach from 8 to 30 millimeters.

Ventilation cover adjustment method

Most of the models on the market today are controlled by manually adjusting the "poppet" position. The operating mode of the air distributor is also set mechanically - it is enough to rotate the “plate” counterclockwise or vice versa. However, the anemostat can be installed in hard-to-reach places, which, for example, may be required by the industrial purpose of the manned room. From this it is clear that it is extremely difficult to manually adjust the position of the device installed on the ceiling. It is for such and such cases that automated anemostatic systems are intended. You might think that they differ in some special design complexity, but no - it's just an ordinary electrical switch connected to the device.

Installation features

Due to the fact that the design of the device in question is quite simple, then its installation is not particularly difficult. The easiest way is to mount the diffuser on a rigid and open air duct. A unit is simply selected that matches the diameter of the hole and is attached to the supporting structures. Installation can be carried out both directly on the body itself as a whole, and on a mounting flange, which can be supplied with some equipment models.

The installation process will be much more complicated if you need to install several devices on ventilation lines. It is always worth remembering that increasing the number of ventilation holes during construction and installation work due to lengthening the laid air duct will inevitably lead to the practical inexpediency of installing anemostats. In another case, difficulties may arise if it is necessary to install the device along unclearly laid ventilation ducts - the problem here lies in the accuracy of determining the location of the technological hole for integrating the product.

Sample step-by-step installation instructions

In principle, for correct installation, you will need to perform a number of simple manipulations:

• Before starting the installation, you need to take measurements of all existing duct communications - this will allow you to find out the optimal diameter of the required device;
• Then you need to connect the air duct to the main ventilation channel;
• The end of the resulting connection must be brought out to the place where the ventilation window is located;
• Then a hole of the required diameter is drilled in the wall and the support element of the unit is mounted in a previously prepared place;
• The next step is to securely fix the anemostatic air distributor in the opening of the ventilation channel;
• Then the whole structure is connected to the air duct;
• An adjusting screw is screwed into the body of an already mounted device and a flange is attached to it;
• The base of the device is fixed to the surface with screws;
• At the end of the installation, the optimal position of the "plate" is set in order to ensure the efficient operation of the system as a whole, starting from the first day.

In the case when the installation of the ventilation system is not the final stage of all construction work, then the visible components of the assembled structure must be sealed with construction tape or covered with paper so that the channels are not clogged with dust and debris. At the first start-up of the system, a correctly installed anemostat will immediately create the impression of a comfortable stay in the room due to the provision of a special microclimate. At the same time, finishing materials used indoors will be reliably protected from excess moisture accumulation.

Rating of the best ventilation diffusers for 2024

For exhaust system

3rd place: "Era" WUA 10

Standard and inexpensive unit for integration into extraction systems. It has proven itself to be used both for household and office premises, as well as for large retail areas. Thanks to its lightweight design, the model can be successfully integrated into extended airway systems. The volume of the extracted air is quietly regulated by the smooth rotation of the diffuser.

Name	Index
Manufacturer country	Russia
Material	Plastic
Dimensions (diameter, mm)	100
Price, rubles	200

• Wall or ceiling mountable;
• Fasteners with screws;
• Smooth adjustment.

• The fragility of the case.

2nd place: "Era" WUA 20

Another unit of the standard type from a Russian manufacturer. It is characterized by a large valve diameter, which means that it can be accommodated in larger areas. The case is made of reinforced ABS plastic, which indicates a long service life provided that the appropriate conditions are met.

Name	Index
Manufacturer country	Russia
Material	ABS plastic
Dimensions (diameter, mm)	200
Price, rubles	400

• Covers a large working area;
• Reinforced housing;
• Extended diameter.

• Not found (for its segment).

1st place: "Vesuvius" M-150

Improved model of the exhaust air diffuser for the hood. Thanks to the use of stainless steel in the manufacture of the housing, the unit perfectly copes with the distribution of any type of air - from cold to hot. Perfect for installation in combustion chambers and smelting shops. At the same time, it can also be used in domestic saunas. The metal body lends itself to decoration.

Name	Index
Manufacturer country	Russia
Material	Stainless steel
Dimensions (diameter, mm)	150
Price, rubles	1500

• Metal body;
• Possibility of decoration;
• Multifunctionality.

• High price;
• Small working diameter.

For the supply system

3rd place: "Era" 10 APP

Used in forced ventilation type communications. The sample has an original design of the splitter, which completely overlaps the projection at the outlet, which significantly increases the aerodynamic properties. The volume of the passed air is conveniently regulated by the smooth rotation of the "plate" in the central part.

Name	Index
Manufacturer country	Russia
Material	Plastic
Dimensions (height, mm)	60
Price, rubles	150

• Economical price;
• Special design of the divider;
• Smooth adjustment.

• Again, a fragile case;
• Inability to control hot air masses.

2nd place: "Airone" DVS-P-100

One of the few diffusers used in supply ventilation and made of metal. In addition, its coating is reinforced with powder enamel, so decoration is impossible. The sample is specially designed for use in industrial environments, capable of handling hot air masses.

Name	Index
Manufacturer country	Russia
Material	Stainless steel
Dimensions (height, mm)	100
Price, rubles	300

• Low price for a metal model;
• Fastening to the air duct by means of a coupling;
• Ease of maintenance.

• Used only in industrial premises.

1st place: "Helios" DLVZ 100

An infrequent guest on the Russian market from a foreign manufacturer. The model is positioned exclusively for design: the working parts are covered with a decorative cover, an additional filter against dirt and dust is integrated into the model itself. Installation of automatic control of the "plate" is possible.

Name	Index
Manufacturer country	Germany
Material	ABS plastic
Dimensions (height, mm)	100
Price, rubles	3000

• The sample is used for interior design;
• Availability of additional equipment (filter and grill);
• Sufficient volume for utility rooms.

• Complexity of installation;
• High price.

Instead of an epilogue

The analysis of the market showed that the Russian buyer prefers exclusively domestic models - the most popular are the products of the St. Petersburg company "ERA". If foreign samples are on sale, then their price is excessively high and they are intended only for decorative purposes. For the rest, Russian units are in no way inferior to them at a much lower cost.