Many owners of modern household appliances do not even realize that an important element responsible for the freshness of products is hidden inside their refrigeration unit. Air purification filter this is not just a marketing ploy, but a functional unit that traps bacteria, mold and unpleasant odors that arise during food storage. If you notice that the milk has begun to sour faster than usual, and vegetables have acquired an off-flavor, perhaps this particular component requires your attention.
The location of the filter element directly depends on the model and manufacturer of the refrigerator. In some cases it is built into the back wall, in others it is a replaceable cartridge located in a special niche. Understanding where is the filter in the refrigeratoris the first step to proper operation of the device and extending its service life. Ignoring the need to care for this unit can lead to the proliferation of pathogenic microflora.
In this article we will analyze in detail the types of filters, the algorithm for cleaning and replacing them, and also answer questions that users often have. You will find out whether the life of the carbon cartridge can be restored or whether it needs to be replaced, and what products are safe for disinfection. Proper care of the air purification system is the key to the health of your family.
Types of air purification systems in refrigerators
Before you begin searching and cleaning, you need to determine what type of system is installed in your unit. Manufacturers use different technologies, and the approach to servicing each of them is radically different. The main types are divided into carbon (absorption) and photocatalytic (ionizing) systems.
Carbon filters work on the principle of activated carbon, allowing air to pass through through granules that absorb odor molecules. They require regular replacement as they become saturated and stop working. Photocatalytic models often do not require replacement of consumables, since they use ultraviolet light or silver ions for disinfection, but they also need to be periodically wiped from dust.
- 🧪 Carbon cartridges - require replacement every 6-12 months, effectively remove odors.
- ⚡ Ionizers - are often built into wall, require cleaning of contacts and surfaces.
- 🌿 Bio-filters - contain enzymes, require careful handling and dry cleaning.
⚠️ Attention: Never try to wash a disposable carbon cartridge with water if The manufacturer's instructions do not explicitly state that it is reusable. Water can destroy the structure of the granules or wash away the active layer, after which the filter will become useless and even harmful.
You can determine the type of your filter by studying the technical data sheet of the device or looking into the storage chamber. Often there is a marking on or near the element itself. For example, models Samsung often use the system Deodorizerand LG — Hygiene Fresh+. Understanding the principle of operation will help you choose the right method of care.
Where is the filter: search in different models
Finding the filter element can take time if you don’t know where to look. In most modern models with the system No Frost it is located on the back wall of the refrigerator compartment. However, the design of the panels varies greatly between different brands, which can be confusing.
In refrigerators Bosch and Siemens there is often a system FreshSensewhere the filter is built directly into the plastic evaporator grille. In models Indesit or Atlant it can be hidden behind a decorative overlay in the upper corner of the camera. It is important to act carefully so as not to break the plastic latches.
To accurately determine the location, use the following table, which organizes data by popular brands:
| Refrigerator brand | Typical location | System name | Does it need replacement |
|---|---|---|---|
| Samsung | Rear wall, top | Deodorizer | Yes (once a year) |
| LG | Inside the lid or on the back | Hygiene Fresh+ | Yes (once every 6 months) |
| Bosch | Built in wall | AirFresh | No (cleaning) |
| Electrolux | Upper corner of the chamber | AirFilter | Yes (once a year) |
If you cannot visually detect the element, try looking for information on the inside of the refrigerator door. There are often stickers indicating the location of key components. It may also be helpful to search by model on the Internet, where the technical features of a particular device are indicated.
What to do if the filter is not found?
If you looked through all the walls and did not find anything similar to a mesh or cartridge, perhaps your refrigerator model uses a cleaning system built into the control unit, or perhaps a filter is not provided in this modification at all. In older models, the filter function is simply performed by regular ventilation when the door is opened.
Instructions: how to clean a reusable filter
If your refrigerator is equipped with a reusable filter (usually a mesh structure or a photocatalytic plate), it must be regularly cleaned of accumulated dust and deposits. A dirty filter not only stops purifying the air, but also becomes a source of unpleasant odors and a breeding ground for bacteria.
The cleaning process requires caution. First you need to remove the element from the seat. It is usually secured with latches or simply inserted into a groove. After removal, inspect it for mechanical damage. If the mesh is intact, you can proceed with the procedure.
☑️ Procedure for cleaning the filter
For cleaning, it is best to use a vacuum cleaner with a furniture attachment at minimum power to draw out dust from the depths of the cells. Then you can wipe the surface with a slightly damp soft cloth. It is strictly forbidden to use abrasive sponges, hard bristle brushes or aggressive chemical solventsas they can damage the active layer or mesh structure.
After wet treatment, the filter must be completely dry. Do not reinstall a wet element, as high humidity in the enclosed space of the chamber can cause mold growth. Leave it to dry at room temperature for 2-3 hours away from direct sunlight.
Replacing the carbon cartridge: step-by-step algorithm
Carbon filters have a limited resource and cannot be restored. When their service life comes to an end, the granules stop smelling and the efficiency of the system drops to zero. Replacing a cartridge is a simple procedure that can be performed by any user without calling a technician.
The first step is to purchase compatible consumables. Use original cartridges or certified analogues, as low-quality carbon can emit harmful dust. Find the part code (Part Number) for your refrigerator model in the instructions.
- 🛒 Buy an original cartridge using the model code.
- 🔓 Carefully open the filter compartment (sometimes you need to turn it counterclockwise).
- ♻️ Remove the old element and dispose of it as household waste.
- 🆕 Insert the new cartridge until you hear a characteristic click.
- 🔔 Reset the replacement indicator on the control panel (if equipped).
After installing a new element, many modern refrigerators require resetting the indicator. This is done through the settings menu on the display or a combination of buttons. For example, in some models you need to hold the button Filter Reset for 3 seconds. If you do not reset the timer, the refrigerator will continue to signal that it needs to be replaced.
⚠️ Attention: Do not try to “reanimate” an old carbon filter by baking it in the oven or drying it with a hairdryer. This will not restore its adsorbing properties, but will only create a risk of fire or damage to the plastic parts of the refrigerator.
Frequent errors when servicing the cleaning system
Refrigerator owners often make mistakes when trying to improve the operation of the equipment, but inadvertently harm it. The most common problem is using the wrong cleaning products. Chlorine-containing preparations or acids can react with filter materials, changing their properties.
Another mistake is ignoring replacement periods. Even if the filter looks clean, the carbon inside it may have become completely saturated. In this case, it begins to release accumulated odors back into the chamber, worsening the quality of food storage. Regular maintenance is more important than visual cleanliness.
Also, users often forget to check the tightness of the filter cover. If it is not completely closed, air will circulate around the purifier, reducing its work to zero. Always check that all elements are tightly latched after servicing.
You should not save on consumables by buying cheap Chinese analogues of dubious quality. Cheap charcoal can have a low density and quickly turn into dust, which will scatter throughout the refrigerator and settle on food. The quality of air purification directly affects health.
The influence of the filter on food storage and health
Having a working filter in the refrigerator is not just a matter of comfort, but also safety. The air purification system prevents cross-pollination of odors: the fish will not smell like strawberries, and the cake will not absorb the aroma of raw meat. This is especially important for products with a porous structure, such as butter, cheese and baked goods.
In addition, many modern filters have antibacterial properties. They trap mold spores and bacteria that can cause food to spoil prematurely. This allows you to extend the shelf life of fresh vegetables and fruits, preserving their vitamins and taste longer.
For people suffering from allergies or asthma, the cleanliness of the air in the refrigerator is also important. When the door is opened, air from the chamber enters the room, and if it is saturated with allergens or fungal spores, this can provoke a reaction. Regularly replacing the filter reduces this risk.
Thus, filter care is an investment in food quality. The simple procedure of replacing the cartridge is inexpensive, but ensures freshness of food and protects against food poisoning caused by spoiled food. Monitor the condition of the system, and the refrigerator will reward you with long and efficient operation.
How often should you change the carbon filter in the refrigerator?
The standard service life of a carbon filter is from 6 to 12 months, depending on the intensity of use of the refrigerator and the filter model. If you often open the door or store foods with strong odors, it is better to replace them more often - once every six months. Many refrigerators are equipped with an indicator that signals the need for replacement.
Is it possible to use a refrigerator without a filter?
Yes, technically the refrigerator will work without a filter installed. However, in this case, the air circulation system will displace odors and bacteria inside the chamber, which will lead to mixing of food flavors and the possible appearance of mold. In addition, in some models, the absence of a filter can disrupt the aerodynamics of air flow.
What is the difference between a filter for a refrigerator and a filter for an extractor hood?
These are completely different devices. A range hood filter (grease trap) traps grease and oil vapors in the kitchen and is often made of metal that can be washed. A refrigerator filter is designed to clean the air from bacteria and odors inside a closed chamber and is usually made of activated carbon or special polymers that cannot be wetted.
Why does the smell remain after replacing the filter?
A new carbon filter may have its own specific odor in the first hours of operation, which is normal. If the smell does not disappear after 1-2 days, the filter may not be installed correctly, the protective film (if any) has not been removed, or the problem is not in the filter, but in the contamination of the drainage hole or evaporator, which require separate cleaning.
Where can I buy an original filter for my refrigerator?
Original consumables are best purchased from the manufacturer’s authorized service centers, official online stores of brands or large chains of household appliances. When purchasing, pay attention to the presence of certificates of conformity and the integrity of the packaging. The filter article number can be found in the instructions for the refrigerator.