A modern refrigerator is not just a metal box for freezing, but a complex climate system that requires proper maintenance. Many owners do not even suspect that a special one is installed inside this unit, which plays a key role in maintaining the freshness of products. Ignoring its condition can lead to the appearance of unpleasant odors, the growth of bacteria and even the breakdown of expensive components. filter element, which plays a key role in maintaining food freshness. Ignoring its condition can lead to the appearance of unpleasant odors, the growth of bacteria and even the breakdown of expensive components.
The main task of this component is to purify the air or water circulating inside the chamber. No Frost System, for example, constantly distils air masses, and without proper filtration all odors will mix, and bacteria will spread throughout the entire volume. Understanding the operating principle of this part will help you avoid many everyday problems.
In this article we will examine in detail the purpose of filters, their types and the consequences of untimely replacement. You will learn how to extend the life of your refrigerator and maintain the health of your family. The filter retains up to 99% of pathogenic microorganismswhich is critically important when storing raw meat and fish.
The main functions of an air purification filter
The main purpose of the air filter is to create hygienically clean environment inside the refrigerator compartment. The air, passing through a special carbon or antibacterial layer, is freed from volatile compounds that are formed during storage of products. Activated carbon The element effectively absorbs ethylene released by vegetables and fruits, which slows down the process of their rotting.
In addition, the device prevents mixing aromas. You've probably encountered a situation where freshly brewed coffee smells like herring or smoked meats. It is the filter that prevents this from happening by capturing odor molecules. In models with Multi Air Flow technology this function becomes critically important, since air circulation occurs throughout the entire internal space.
It is also worth noting the protection of the evaporator from contamination. Fine dust, lint and food particles falling on the heat exchanger can disrupt heat exchange. The filter acts as a barrier, taking the blow. This allows the compressor to operate normally without overload.
- 🌿 Absorption of ethylene to prolong the freshness of vegetables
- 🦠 Destruction of bacteria and mold spores in the air
- 🍋 Elimination of mixing of foreign odors
- ❄️ Protecting the evaporator from dust and debris
⚠️ Attention: If you notice that vegetables have begun to wither faster than usual, and a musty smell has appeared in the chamber, most likely the filter resource has been exhausted and needs to be replaced.
Types of filter systems in refrigerators
Household appliance manufacturers use different cleaning technologies, and it is important to understand the difference between them. The most common type is carbon filter. It is a cartridge filled with activated carbon granules, often with the addition of silver for an antibacterial effect. Such elements require periodic replacement, since the carbon becomes saturated over time.
The second popular option is deodorizing filters based on zeolite or other minerals. They are often found in LG and Samsung models. Their feature is the possibility of partial regeneration: if you turn off the refrigerator for several hours, the properties may be partially restored, but a complete replacement is still necessary after a certain time.
It is worth mentioning separately the water filters that are installed in refrigerators with water dispensers and ice makers. They purify tap water from chlorine, heavy metals and mechanical impurities. The service life of such cartridges is usually measured in liters or months, and ignoring them can lead to clogging of the thin tubes of the water supply system. Some premium models are equipped with plasma clusters. Although technically these are not replaceable cartridges in the classical sense, they perform the same cleaning function, but require checking the functionality of the electronics.
Some premium models are equipped ionizers or plasma clusters. Although technically not replaceable cartridges in the classic sense, they perform the same cleaning function, but require verification of the functionality of the electronics.
How often do you need to change the filter
The frequency of replacement directly depends on the type of element installed and the intensity of use of the refrigerator. For standard carbon cartridges, the average lifespan is 6 to 12 months. However, if you store a lot of products with a strong odor or there are allergy sufferers in the house, it is better to replace it more often - once every six months.
Water filters have a more precise resource, which is often indicated by the manufacturer in liters (for example, 300 or 500 liters). Many modern models are equipped replacement indicator on a display that counts down the time since the last reset. You should not ignore these signals, as a saturated filter can become a source of secondary contamination.
There are a number of signs by which you can determine the need for replacement without reference to the calendar:
- 📅 More than 6 months have passed since the last replacement
- 👃 Appears persistent unpleasant odor inside the chambers
- 💧 Water from the dispenser has changed taste or color
- 🧊 Ice in the freezer has acquired a foreign tint or odor
⚠️ Attention: Using an expired water filter can lead to accumulated harmful substances getting into the drinking water and bacteria, since the sorbent ceases to retain them.
Consequences of operation without a filter
Many users wonder: is it possible to operate a refrigerator without a filter element? Technically, the unit will work, but the consequences for the products and the device itself may be negative. First of all, it suffers microclimate inside the cameras. Without cleaning, bacteria multiply much faster, which shortens the shelf life of milk, meat and ready-made dishes.
In models with a system No Frost the absence of a filter leads to rapid fouling of the evaporator with a sticky coating of fats and dust. This coating acts as a heat insulator, causing the refrigerator to work longer and harder to maintain the set temperature. This is a direct path to increased electricity bills and wear on the compressor.
It is also worth considering the risk of mold formation in hard-to-reach places in the air ducts. Mold spores are very tenacious and can enter the respiratory tract of household members when the door is opened. For people with asthma or allergies, this can become a serious health problem.
The table below compares the condition of a refrigerator with and without a filter:
| Parameter | With a working filter | Without a filter or with an expired one |
|---|---|---|
| Freshness of vegetables | Stable up to 2 times longer | Rapid withering and rotting |
| Odors | Absent or neutral | Mixing of aromas, mustiness |
| Evaporator cleanliness | Minimal contamination | Greaser and dust deposits, icing |
| Energy consumption | Standard | Increases due to impaired heat exchange |
Can the carbon filter be washed and reused?
It is strictly forbidden to wash the carbon filter with water. Water washes away the active substances and destroys the structure of the granules, after which the filter stops working and can become a source of mold. Disposable items can only be recycled.
Instructions for replacing the filter yourself
Replacing the filter is a simple procedure that you can do yourself without calling a technician. In most refrigerator models cartridge located on the back wall of the refrigerator compartment or in a special compartment in the upper part. Before starting work, be sure to disconnect the device from the power supply for safety.
Take out the old element. Usually it is either pulled out by pulling towards you or turned counterclockwise. Be prepared for the fact that coal dust may fall from the old filter - this is normal. Wipe the installation area with a damp cloth to remove dirt.
Install the new filter, observing the direction of airflow (air flow), which is often indicated by the arrow on the housing. After installation, do not forget to reset the replacement indicator if your model has one. This is usually done by long pressing the button Filter Reset or through the settings menu.
☑️ Filter replacement algorithm
Frequently asked questions and misconceptions
There are many myths around filters for refrigerators. For example, there is an opinion that filter with silver disinfects the camera forever. In fact, silver only suppresses the growth of bacteria on the surface of the filter itself, but does not magically sterilize the entire volume of the refrigerator.
Another misconception concerns versatility. Users often think that any carbon block will fit any model. However, the dimensions, shape and resistance of the airflow may differ from one manufacturer to another (LG, Samsung, Bosch). Using the wrong filter can interfere with air circulation.
It is also important to understand the difference between a refrigerator filter and a range hood filter. These are completely different devices with different operating principles. The grease filter of the hood traps oil vapors, and the refrigeration filter cleans the air already inside.
⚠️ Attention: Technical characteristics and location of filters may vary depending on the specific model and year of manufacture of the refrigerator. Always check the official user manual (operating manual) for your device, as the design may change.
Can I use the refrigerator if I do not buy a new filter right away?
Yes, using it without a filter is possible, but it is not recommended to delay replacement for more than 2-3 weeks. During this period, watch for the appearance of odors and defrost and wash the chambers more often. It is better to store products in closed containers.
Where can I buy an original filter for my refrigerator?
Original spare parts are best purchased at authorized service centers of the brand or in large specialized stores of spare parts for household appliances. When purchasing, pay attention to the article number indicated in the instructions.
Does the filter affect the noise level of the refrigerator?
A working filter itself does not affect the noise. However, a filter heavily clogged with dust and grease creates air resistance, forcing the No Frost system fan to work harder, which can slightly increase the noise level.
How to dispose of an old carbon filter?
Carbon filters are classified as household waste, but it is better not to throw them into general garbage if your city has collection points for sorbents or special waste. Coal is a natural material, but it may contain accumulated chemicals from products.