The modern refrigerator has ceased to be just a cabinet for cooling food; today it is a complex device that ensures the safety and preservation of food. In the model range of the South Korean company LG technology occupies a special place Hygiene Fresh+, which often raises questions among potential buyers. Many perceive it as a marketing ploy, but behind this name lies a serious engineering development aimed at deep cleaning of the air inside the chamber.
The essence of the system is to create an unfavorable environment for the growth of bacteria and neutralize unpleasant odors that arise during the storage of various products. Unlike simple carbon filters, this technology offers multi-stage protection, which is especially important for families with small children or people with allergies. Understanding the operating principle of this system will help you properly operate the equipment and maintain ideal hygiene in the kitchen.
In this article we will analyze in detail what the system consists of, how exactly it interacts with the air flows inside the refrigerator compartment and why its presence is a strong argument when choosing a new model of household appliances. We will also touch on the issues of maintenance and replacement of consumables so that you can enjoy the freshness of your products for many years.
The principle of operation of the multi-stage cleaning system
The technology Hygiene Fresh+ is based on a five-stage filtration system, which forces the air inside the refrigeration chamber through a series of specialized barriers. The air not only circulates, but undergoes forced purification, which allows you to remove up to 99.9% of bacteria, such as E. coli, salmonella and staphylococcus. This is achieved through a combination of mechanical and chemical cleaning methods built into a compact module.
The first stage is a pre-filter that traps large dust particles and lint, preventing them from entering the finer structures of the system. This is followed by a layer of antibacterial treatment, where special substances destroy pathogenic microorganisms. The third stage is represented by deodorizing filter, which effectively breaks down odor molecules, preventing the aroma of fish from mixing with the smell of cake or fruit.
The cycle is completed by a catalytic filter and a final antibacterial treatment, ensuring that perfectly clean air is returned back to the chamber. It is important to note that the system operates in automatic mode, activated when the door is opened or by a timer, which ensures constant freshness without user intervention.
Technical details of the catalyst
The catalytic filter in the Hygiene Fresh+ system works on the principle of oxidation of organic compounds. Upon contact with air, a reaction occurs on the surface of the catalyst, converting odorous substances into harmless water and carbon dioxide. This process does not require replacing the filter as often as carbon analogues, but its effectiveness depends on the humidity and temperature inside the chamber.
Design features and module design
The cleaning module is usually located on the back wall of the refrigeration chamber or in the upper part of the internal space, depending on the specific model. LG. Structurally, it is a replaceable block, inside of which layers of filter materials are successively located. The engineers have provided a convenient access system that allows you to replace consumables without calling a technician.
Inside the unit there is a powerful but quiet fan that provides forced air circulation through the filters. Without this active composition, passive filtration would be less effective, especially in large volume refrigerators with the No Frostsystem. The fan operates cyclically so as not to create excessive noise and not overdry the food.
For visual monitoring of the system status, an indicator is often located on the front panel of the module. It may glow green to indicate normal operation, or change color to red when it is time to replace the filter. This eliminates the need for the owner to keep a paper record of the installation date of the new cartridge.
- 🌿 Pre-filter: retains coarse dust and hair.
- 🦠 Antibacterial layer: destroys up to 99.9% of bacteria.
- 👃 Deodorizer: neutralizes the odors of fish, meat and spices.
- ⚙️ Catalytic element: breaks down complex organic compounds.
It is worth considering that the design of the module is sealed, and attempts to disassemble it for Flushing or replacing the internal contents yourself may compromise the seal and reduce efficiency. Factory assembly guarantees the correct arrangement of layers and the tightness of the materials, which is critical for creating the necessary air pressure.
Efficiency in removing bacteria and odors
The main question that worries users: does the system really work or is it just a pretty inscription? Laboratory tests confirm that Hygiene Fresh+ able to remove a significant portion of common bacteria. However, efficiency depends on proper operation of the refrigerator and timely replacement of filters.
Unlike ozonizers, which can be dangerous in high concentrations, this system is safe for food. It does not change the chemical composition of the products, but only cleanses the atmosphere surrounding them. This is especially important for storing vegetables and fruits, which can absorb foreign odors.
The system is especially effective against odors generated during storage of raw meat, fish and strong-smelling cheeses. Conventional refrigerators often produce mixed odors that are difficult to get rid of simply by cleaning them. The technology LG solves this problem at the level of air circulation, preventing odors from settling on walls and other products.
⚠️ Attention: The Hygiene Fresh+ system is not intended to remove rotting odors from spoiled products. If there is rotten vegetables or sour milk in the refrigerator, no filter will cope with the volume of emitted substances - the source of the smell must be physically removed.
Comparison with carbon filters and ozonizers
On the household appliances market you can find various cleaning systems, and it is important to understand their differences. Conventional carbon filters work on the principle of adsorption: they absorb odors until they are completely saturated. After this, they stop working and can themselves become a source of unpleasant odors. The system Hygiene Fresh+ is distinguished by the fact that it does not simply accumulate contaminants, but actively destroys them.
Ozonators, which are found in some models of other brands, use an electric discharge to generate ozone. Ozone does kill bacteria, but in a closed space with food its concentration must be strictly controlled. Technology LG has chosen the path of mechanical-chemical filtration, which is a more predictable and safe solution for daily use.
| Characteristics | Hygiene Fresh+ (LG) | Conventional carbon filter | Ozonizer |
|---|---|---|---|
| Principle action | 5-stage filtration | Adsorption (absorption) | Ozone oxidation |
| Bacteria removal | High (up to 99.9%) | Low/Average | Very high |
| Service life | Up to 70,000 hours (indicator) | 3-6 months | Long-term |
| Safety | Completely safe | Safe | Requires control |
It is also worth noting energy consumption. The module Hygiene Fresh+ consumes a minimal amount of electricity, since the fan turns on periodically. This makes it an economical addition that does not noticeably affect electricity bills, unlike constantly operating ionization systems.
Maintenance and replacement of the filter element
Like any filter, element Hygiene Fresh+ has a limited resource. On average, one cartridge lasts for several years of active use, but the exact period depends on the intensity of use of the refrigerator and air pollution in the kitchen. The system itself will inform you about the need for replacement through an indicator on the panel.
The replacement process is as simplified as possible and does not require tools. You need to open the refrigerator door, locate the module (usually it is labeled), press the latch and remove the old unit. The new cartridge is installed in the same direction, after which you need to press the indicator reset button if it is not reset automatically.
☑️ Hygiene Fresh+ filter replacement algorithm
When purchasing a new filter, it is important to pay attention to compatibility with your refrigerator model LG. Although the design of many modules is similar, the size and location of the fasteners may vary from series to series. Original consumables guarantee the cleaning efficiency declared by the manufacturer.
The influence of technology on food storage
The presence of an air purification system directly affects the shelf life of products. Reducing the concentration of ethylene and bacteria slows down the process of rotting vegetables and fruits. Leaf salads, greens and berries remain fresh much longer than in conventional refrigerators without such a system.
In addition, the absence of mixing odors allows you to store open products, such as cottage cheese or butter, without the risk that they will taste like herring or smoked meats. This is especially valuable for those who purchase products once a week and store them in large volumes.
It is important to understand that Hygiene Fresh+ is this system. It does not replace the need to comply with product proximity and temperature conditions. Frozen meat should still be stored in the freezer and not on the refrigerator shelf, regardless of the quality of the air purification.
⚠️ Attention: Do not block the ventilation openings of the Hygiene Fresh+ module with food or containers. To operate effectively, the system requires free air flow. The distance to the products should be at least 5-7 cm.
Frequently asked questions (FAQ)
Can the Hygiene Fresh+ filter be washed with water?
No, categorically wash the main filter element with water prohibited. Water will damage the antibacterial impregnation and the structure of the material, after which the filter will become useless and can become a breeding ground for mold. Only dry cleaning of the outer grille with a soft brush is allowed.
How often do you need to change the filter in reality?
The filter resource is designed for approximately 70,000 hours of operation, which is about 8 years. However, in real conditions, taking into account polluted air and frequent opening of doors, the indicator may light up after 2-4 years. Follow the indication on the control panel.
Does the system work in the freezer?
In most models, the system Hygiene Fresh+ is installed only in the refrigerator compartment. In the freezer, low temperature itself suppresses the growth of most bacteria, so additional cleaning is required there less often, although there may be exceptions in premium models.
Does the system make noise during operation?
The noise level from the system fan is minimal and usually does not exceed 20-25 dB, which is comparable to the noise of leaves in the wind. In quiet mode or at night, you are unlikely to notice its operation unless you specifically listen at the back wall of the refrigerator.