In summer, using the air conditioner is part of the daily routine of many households, but to ensure optimal performance and hygiene of the system, it is essential to take care of it throughout the year, especially before and after the season of use.

 

Filter cleaning, in particular, is a fundamental operation that helps you preserve the energy efficiency of your air conditioner to improve home comfort and save energy. It also helps keep the air healthier and cleaner in rooms, reducing the spread of dust, allergens and bacteria.

Why is it important to clean air conditioner filters?

Cleaning the air conditioner filters is one of the simplest, but also one of the most important maintenance checks to ensure the proper functioning of the system. The purpose of filters is to trap impurities in the air, such as dust, pollen, animal hair, and bacteria, which could settle on the air conditioner's internal components, reducing heat exchange capacity and compromising efficiency. Without proper maintenance, they can turn into a breeding ground for bacteria and mould, with negative consequences for people's health and the longevity of the appliance.


When air conditioner filters are dirty or clogged, air flow is obstructed. This forces the motor and compressor to work harder to reach the desired temperature. As a result, the air conditioner takes longer to cool or heat the room, increasing energy consumption by 30% compared to factory settings. Excessive strain on internal components accelerates wear on mechanical parts, reducing the life of the device and increasing the likelihood of failure or malfunctioning. The hygiene aspect should also not be overlooked: clogged filters are no longer able to guarantee air quality, releasing dust and impurities that can cause respiratory problems, such as allergies.

How to clean air conditioner filters properly

Tools needed for cleaning

Cleaning the filters is a very simple operation that you can do yourself. For best results, without risking ruining the system, make sure you have in your home: 

  • Vacuum cleaner with soft brush to remove surface dust;

  • Neutral detergent for washing;

  • Soft brush or sponge for stubborn dirt;

  • Soft cloth for drying filters;

  • Filter-specific sanitising spray, if required;

In addition to the right tools, correct maintenance intervals are also essential. But how often is it advisable to clean the filters?

 

Frequency of air conditioner filter cleaning

The frequency of cleaning depends on several factors, such as the type of appliance and environmental conditions. In general, it is advisable to clean the filters at least twice a year: before the seasonal switch-on and after the period of heaviest use. However, if the air conditioner is used daily or is located in particularly dusty environments, it is advisable to increase the frequency of cleaning to once a month, while during periods of moderate use, cleaning every 2-3 months may be sufficient. 

 

When cleaning is not enough, one must consider replacing the filters completely to ensure efficient air conditioner operation

Are you looking for a 0% interest air conditioner with installation?

Only with Enel: €180 bill bonus and air conditioners with 0% interest for up to 24 months!

Condizionatori Enel Tasso 0 e installazione inclusa Condizionatori Enel Tasso 0 e installazione inclusa Condizionatori Enel Tasso 0 e installazione inclusa

Other maintenance practices to improve air conditioner efficiency

In addition to filter cleaning, there are other maintenance practices to keep the air conditioner efficient and prolong its life: 

  • Checking and cleaning the heat exchange coils (evaporator and condenser): if the coils become covered with dust or dirt, then cooling capacity is significantly reduced. They should be checked at least once a year and gently cleaned with a dry brush or cloth, taking care not to bend the metal fins.

  • Temperature regulation: setting the temperature of the air conditioner between 24°C and 26°C in summer is the best choice for comfort and energy saving. Temperatures that are too low increase consumption and subject the motor to unnecessary stress. It is advisable to use the 'dry' or dehumidification mode, which cools the room without excessively lowering the temperature. 

  • Checking seals: window and door seals must be in good condition to prevent cool air leakage. It is important to periodically check the condition of the seals and replace them if worn or damaged to maintain the efficiency of the system.

  • Cleaning the fans: the air conditioner fans, both internal and external, must be free of dust and debris. A dirty fan reduces air flow and can cause vibration or abnormal noise. Wiping them regularly with a soft cloth or brush improves the performance of the appliance and helps to keep consumption low.

To improve the efficiency of your system and make your use more aware, it is essential to know the benefits of filter cleaning and adopt good practices. This allows comfort to be maintained in all seasons, avoiding unexpected costs in your bills.