Cold fog generators: technical specialization, types and reviews

Cold fog generators are designed for treating premises with special solutions. They provide the smallest dispersion of the means, while their temperature corresponds to the environmental parameters, due to what the devices and acquired the name "cold".

Specialization

The size of the droplets to be sprayed is within 10-70 microns. Aerosol remains in the air for a long time, penetrates into the furniture and invisible to the eye slits. The devices form a powerful airflow, which ensures an intensive distribution of the working composition, it can pass a distance of 10-15 meters in a fraction of seconds. The mass of the devices is about 6 kg, they are equipped with a 220 V motor.

Kinds

The generator of cold fog for disinfection ensures a uniform and efficient distribution of a special solution to premises of any size, so it is optimal for warehouses and industrial warehouses, public transport, private estates, cinemas, hostels. Minute spray particles settle on the floor, furniture, tools, walls, and also penetrate into ventilation ducts and hard-to-reach places that can not be processed with a conventional generator.

Devices are divided by design into two categories:

• Household, used in living quarters;
• Professional, which are present in equipping disinfection services and are suitable for processing large areas, greenhouses and warehouses.

Principle of operation

The generators of cold mist are based on the dispersive mechanism of aerosol formation. The composition placed in the reservoir of the device is mixed with air. The solution is influenced by the aerodynamic force and surface tension.

The mechanism of action in all units is identical, regardless of their type. The drive motor ensures air intake and the activation of a special compressor. The latter is two-stage, its operation principle is similar to a pump having a lateral channel. In addition, some devices are equipped with centrifugal multi-stage compressors. Due to the geometry of the atomized particles and the characteristics of the device, a high level of compression is attained with minimal air flow.

The atomizer nozzle has a two-stage design: the liquid flow in the first stage is broken by air supplied at high speed with noticeable vortices, at which time there is a collision of two structures. Further, a stream of compressed air opens, which differs by the vortices opposite to the first stage, that is, a cluster of medium emission is formed. The metering nozzles receive a uniform flow, so that the amount of liquid is always unchanged and remains under control.

Advantages

The processing of the cold mist generator allows to solve the tasks concerning the treatment of premises and has the following advantages:

• The dimensions of the spray nozzles can be adjusted, so during the distribution of the agent, it is possible to change the density of the layer formed on the surfaces and to select the required flow rate.
• Unlike low pressure pump devices, cold fog generators can significantly reduce the time spent on processing and disinfect rooms with a large area within a few minutes.
• The spraying mechanism occurs in such a way that on all surfaces, including wall structures, a uniform thin layer of the substance is formed, it is also possible to apply to the ceiling.

Application Features

Despite many advantages, the technique of cold spraying differs in some difficulties:

• Before carrying out the work, appropriate training should be carried out, which consists in the preservation of objects capable of absorbing liquid, and care should be taken to prevent even a small amount of aerosol particles from getting into the body.
• In view of the fact that the working composition penetrates into the ventilation system, it can end up in adjacent rooms that can not be treated.
• There may be difficulties with various sensors, including firefighters. Some devices are highly sensitive and can respond to spraying, this is complicated by the fact that the aerosol generator of a cold mist sprays particles at a distance of up to 15 meters.
• Enhance the smell of the active ingredient. Most of the means used to get rid of pests and insects, has a sharp odor, which is markedly enhanced and remains longer in the room as the size of the sprayed particles decreases. That is, when processing with a generator and a conventional device in the first version, the smell will always be noticeably stronger.
• Efficiency is minimized in the presence of air currents that disperse the aerosol. For example, after switching on the ventilation system with a mechanical drive, the odor may not remain for a few minutes from the product. Therefore, the devices are not suitable for use in ventilated areas.

Generators of cold and hot fog: differences

Both methods are based on the formation of the smallest drops. The hot device provides an aerosol with a size of about 20 microns, while the particles of the device of a different kind are somewhat larger. Generators, heating the working composition, effectively eliminate insects and minimize the likelihood of their appearance, but they are large in size and belong to the category of professional apparatus.

What you need to know

The generator of a cold fog, responses about which basically positive, it is necessary to apply correctly. They can reliably and quickly process a large room, in the process of working the composition covers all surfaces, including space behind furniture and various equipment. There is also no need to reposition items, which significantly reduces time costs. But because of this, it is necessary to take into account the difficulties associated with fire sensors and ventilation system. At the same time, today the technique of cold spraying is becoming increasingly popular and is used for processing residential premises and industrial facilities.

Reviews

Generators of cold fog IGEBA Nebulo, judging by the feedback of the owners, are easy to use and light in weight. Many note their multifunctionality, that is, they are suitable for both disinfection of premises and for the destruction of insects.

On the device Hurricane reviews are various. Its main advantage is the possibility of using the working composition on any basis, since it equally effectively works with water and oil preparations.

Bure SM B100 - a generator of cold fog of the South Korean manufacturer, equipped with a powerful engine that allows processing in the shortest possible time. In its price segment, it occupies a leading position, which is often noted by the people who bought it. Also, according to the owners, it has a smooth power adjustment, a long network cable, simplifying the connection, and a light weight.