Cold fog generators are designed for processing rooms with special solutions. They provide the smallest atomization of funds, while their temperature corresponds to the environmental indicators, so the device has become known as “cold”.
Specialization
The size of the sprayed droplets is in the range of 10-70 microns. The aerosol remains in the air for a long time, penetrates into furniture and crevices invisible to the eye. Devices form a powerful air stream, which provides an intensive distribution of the working composition, it can pass a distance of 10-15 meters in a fraction of a second. The mass of the devices is about 6 kg, they are equipped with a 220 V engine.
Kinds
The cold fog generator for disinfection provides uniform and efficient distribution of the special solution to rooms of any size, therefore it is optimally suitable for warehouse and industrial warehouses, public transport, private estates, cinemas, dormitories. The smallest atomized particles settle on the floor, furniture, tools, walls, and also penetrate into ventilation ducts and inaccessible places that cannot be processed using a conventional generator.
Devices are intended for two categories:
- household, used in residential premises;
- professional, which are present in the equipment of disinfection services and are suitable for processing rooms with a large area, greenhouses and warehouses.
Principle of operation
Cold fog generators are based on the dispersion mechanism of aerosol formation. The composition, placed in the reservoir of the device, is mixed with air. Aerodynamic force and surface tension affect the solution .
The mechanism of action in all units is identical, regardless of their type. The drive motor provides air intake and the inclusion of a special compressor. The latter is a two-stage, its principle of operation is similar to a pump having a side channel. In addition, some devices are equipped with centrifugal multistage compressors. Due to the geometry of the atomized particles and the characteristics of the device, a high level of compression is achieved with a minimum air consumption.
The atomizer nozzle has a two-stage design: at the first stage, the fluid flow is bursting with air supplied at high speed with noticeable turbulence, at which time two structures collide. Then a stream of compressed air opens, which is characterized by turbulences opposite to the first stage, that is, an accumulation of average emission is formed. A uniform flow comes from the dosing nozzles, due to which the amount of liquid is always unchanged and remains under control.
Advantages
Processing with a cold fog generator allows you to solve the problems associated with the processing of rooms, and has the following advantages:
- The sizes of the spray nozzles can be adjusted, so in the process of distributing the product, you can change the density of the layer formed on the surfaces and select the desired flow rate.
- Unlike pumping devices operating at low pressure, cold fog generators can significantly reduce the processing time and within a few minutes disinfect rooms with a large area.
- The spraying mechanism occurs in such a way that on all surfaces, including wall structures, a uniform thin layer of substance is formed, it is also possible to apply to the ceiling.
Application features
Despite many advantages, the method of cold spraying has some difficulties:
- Before carrying out work, appropriate preparation should be carried out, which consists in preserving objects that can absorb liquid, while care must be taken to prevent the possibility of ingress of even a small amount of aerosol particles.
- Due to the fact that the working composition penetrates into the ventilation system, it may end up in neighboring rooms that cannot be processed.
- 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 cold fog sprays particles up to 15 meters.
- Enhancing the smell of the active substance. Most of the products used to get rid of pests and insects have a pungent smell, which is noticeably enhanced and stays in the room longer as the size of the sprayed particles decreases. That is, when processing using a generator and a conventional device in the first embodiment, the smell will always be noticeably stronger.
- Efficiency is minimized by the presence of air streams dispersing the aerosol. For example, after turning on the ventilation system with mechanical stimulation, even the smell may not remain from the product for several minutes. Therefore, the devices are not suitable for use in ventilated areas.
Cold and hot fog generators: differences
Both methods are based on the formation of the smallest drops. A hot apparatus provides an aerosol with a size of about 20 microns, while particles of a different type of device are slightly larger. Generators that heat the working composition effectively eliminate insects and minimize the likelihood of their appearance, but they differ in large dimensions and belong to the category of professional apparatuses.
What you need to know
The cold fog generator, reviews of which are mostly positive, needs to be applied correctly. They can reliably and quickly process a large room, in the process, the composition covers all surfaces, including the space behind furniture and various equipment. Also, there is no need to rearrange items, which significantly reduces time costs. But because of this, it is necessary to take into account the difficulties associated with fire sensors and the ventilation system. However, today the cold spraying technique is becoming increasingly popular and is used for the treatment of residential premises and industrial facilities.
Reviews
Judging by the reviews of the owners, IGEBA Nebulo cold fog generators are notable for their ease of use and low weight. Many note their versatility, that is, they are suitable for both disinfecting the premises and killing insects.
There are various reviews about the Hurricane. Its main advantage is the possibility of using the working composition on any basis, since it works equally effectively with water and oil preparations.
Bure SM B100 is a cold fog generator of a 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 purchased it. Also, according to the owners, it has infinitely adjustable power, a long network cable for easy connection, and low weight.