A comprehensive guide to SALDA recuperator filters
SALDA recuperator filters are an essential part of modern ventilation systems, ensuring clean and healthy indoor air. These specialized filters remove dust, pollen, bacteria and other pollutants, so the recuperator system works efficiently and maintains a healthy microclimate in your home or work environment.

Proper filter selection and regular maintenance are essential to maintain optimal system performance and extend its service life.
In this comprehensive guide, you will learn about SALDA recuperator filter types and their classifications, the correct replacement process, how to choose the most suitable filters for your system, and best practices for maintaining indoor air quality. For more information about the various filter options for SMARTY and RIRS series units, please see our comprehensive /lt/ 16-salda">SALDA gamintojo filtrų kataloge , which is useful for both homeowners and professionals.
What are SALDA recuperator filters and why are they important?
Recuperator filters are specialized air cleaning elements designed to trap particles of various sizes entering the ventilation system. SALDA, a company operating since 1990, manufactures high-quality recuperators and their filters that meet strict international standards.
These filters perform several important functions: they protect residents from inhaling harmful particles, extend the life of the unit itself by ensuring the cleanliness of heat exchangers and fans, and help maintain consistent indoor air quality. Without proper filters, the recuperation system would not be able to effectively remove dust, pollen, bacteria or other pollutants from the circulating air.
Ventilation system filters are classified according to their retention efficiency, which is specified in ISO standards. The previous EN779 classification (G4, F7) has now been replaced by the ISO 16890 standard, which more precisely specifies the filter's ability to retain particles of different sizes.
Explanation of filter classification (G4, F7, HEPA, ISO 16890)
Recuperator filters are divided into different classes according to their ability to retain particles of various sizes:

- G4 (now ISO ePM10) - filters retain large particles (>10 micrometers), including insects, large plant pollen, hair. These are basic filters suitable for general indoor ventilation.
- F7 (now ISO ePM1) - medium-efficiency filters that retain 80-90% of particles 1-10 micrometers in size, including most pollen, mold spores, and dust mites.
- HEPA - high-efficiency particulate air filters that capture up to 99.97% of particles as small as 0.3 micrometers, including bacteria and viruses. Used where high air quality is required.
The ISO 16890 standard classifies filters according to their ability to trap different particle sizes (ePM1, ePM2.5 and ePM10), where the number indicates the particle size in micrometers. This standard provides more accurate information about the filter's performance in real-world conditions.
To choose the right filters that meet modern quality standards and optimize air quality, check out our /lt/ 17-rekuperatoriu-filtrai">aukštos kokybės, ISO 16890 standartą atitinkančius filtrų sprendimus selected for SALDA and other leading recuperator manufacturers.
How and when to change recuperator filters in SALDA systems
Proper filter replacement is essential to ensure optimal performance of the SALDA heat recovery unit and clean indoor air. The filter replacement process is quite simple, but it is important to follow safety requirements.
Filter replacement process:
- Disconnect the device from the power supply - this is a basic safety requirement.
- Open the heat exchanger maintenance panel (usually this is done by unscrewing the mounting screws).
- Identify old filters - in SALDA systems they are usually clearly visible and easy to remove.

- Carefully remove the dirty filters, taking care not to spread dust.
- Inspect the filter frame for damage and clean the filter housing if necessary.
- Install new filters, paying attention to the airflow direction (usually marked on the filter).
- Close the maintenance panel and reconnect the device to the power source.
- Reset the filter change timer if your device has this feature.
It is recommended to change filters every 3-6 months, depending on environmental pollution, seasonality (in spring, during pollen season, it may be necessary more often) and intensity of use. Ignoring contaminated filters causes a number of problems:
- Air flow is reduced, making the system inefficient
- energy consumption increases because the device has to work harder
- the heat exchanger and fans become dirty, reducing their efficiency and service life
- Indoor pollutants accumulate that can cause allergies or respiratory problems
Many newer SALDA models are equipped with filter clogging indicators that signal when it is time to change the filters. Please note that even if the system does not warn you, the filters should still be changed regularly according to the manufacturer's recommendations.
Solving the most common problems
The following are symptoms that indicate that filters need to be replaced:
- Increased noise - dirty filters force the fans to work harder, making the system noisier.
- Reduced airflow - if you notice that ventilation has become less intense, it is likely that the filters are clogged.
- Dust on the ventilation grilles is a clear sign that the filters are no longer performing their function.
- Increased electricity consumption - clogged filters require more energy to achieve the same performance.
- Unpleasant odor - may occur due to microorganisms and mold accumulating in the filters.
If your unit needs a replacement filter, see /lt/ 96-rirs-700-v-eko-filtru-komplektas-545x260x46.html">RIRS 700 V EKO filtrų komplekto išsamią specifikaciją , which ensures optimal fit and maximum filtration in compatible SALDA recuperators.
Choosing the right filter for your SALDA heat recovery unit
When choosing filters for a SALDA heat exchanger, it is important to consider several important factors. Incorrect filter selection can cause system malfunctions and not ensure the required air quality.
First of all, it is necessary to determine the exact model of your recuperator - SALDA produces various models, among which the most popular are the SMARTY and RIRS series. Each series has specific requirements for filters:

- SMARTY series filters - more compact, usually used in smaller apartments or houses. This series is characterized by smaller filters.
- RIRS series filters - designed for larger commercial or residential buildings, feature greater filtration capacity and area.
When choosing filters, you should also consider the size and purpose of the room. Larger areas require larger or more efficient filters. It is also important to consider specific air quality issues:
- In urban environments , F7 (ePM1) class filters are recommended, which can trap fine particles and soot.
- For allergy sufferers , F9 or even HEPA filters are ideal, as they effectively trap pollen and other allergens.
- In a moderately polluted environment - G4 (ePM10) class filters are sufficient for daily use.
The filter material also affects efficiency and service life. Modern filters are made of:
- Synthetic fibers - more durable, more moisture resistant.
- Fiberglass - higher filtration efficiency.
- "Eco green" - ecological alternatives that are less harmful to the environment.
It is also important to pay attention to the filter frame - a moisture-resistant cardboard frame is superior to ordinary cardboard, especially in humid rooms. A metal or plastic frame is more durable, but often more expensive.
For more detailed technical information, see /lt/ 97-rirs-700-h-eko-filtru-komplektas-545x260x46.html">RIRS 700 H EKO filtrų komplekto specifikacijas , where you can compare dimensions, certificates and local manufacturing standards.
The best experience in maintaining indoor air quality with SALDA recuperator filters
Effectively maintained SALDA recuperator filters not only ensure clean indoor air, but also extend the service life of the equipment and reduce energy costs. Here are some key tips on how to get the most out of your ventilation system.
Regularly checking your filters is one of the most important maintenance steps. Even if the manufacturer recommends changing your filters every 3-6 months, it is a good idea to inspect them more often, especially after dusty seasons or during construction work nearby. A visual inspection can reveal early signs of contamination.
Keeping spare filters is also a good practice.

Having a spare set at home will allow you to replace contaminated filters immediately and avoid a situation where the system operates with dirty filters. Store spare filters in a dry, clean place, in their original packaging, undamaged.
An important aspect is the proper disposal of used filters. Although most filters are not recyclable due to the contaminants they contain, they should be disposed of properly according to local waste management regulations. Some manufacturers offer eco-friendly filters that are less harmful to the environment.
The efficiency of the recuperator filter can be increased in additional ways:
- clean the premises regularly to reduce dust
- use doormats that trap dirt
- maintain an optimal humidity level indoors (40-60%), as this reduces dust circulation
- Change your vacuum cleaner filters on time to prevent dust from being re-emitted during cleaning.
Professional system maintenance at least once a year is recommended to ensure that the entire system is working properly. A specialist will not only replace the filters, but also check other components, clean the heat exchanger and fans.

Please note that energy savings and filter efficiency are closely linked. A dirty filter can increase energy consumption by up to 15%, as the system needs more power to overcome the increased resistance. Regular filter replacement ensures not only clean air, but also lower electricity bills.
Investing in higher quality filters often pays off in the long run - they not only filter the air more efficiently, but also last longer, reducing overall maintenance costs. Filters that meet the ISO 16890 standard are the optimal choice for balancing efficiency and cost.
Conclusions
SALDA recuperator filters are an essential part of the ventilation system, ensuring clean air and efficient operation of the equipment. Regular filter replacement according to the manufacturer's recommendations, proper selection according to the conditions of use and the needs of the specific environment, and professional system maintenance are the keys to a healthy microclimate indoors.
Investing in quality filters and their proper maintenance will pay off not only in a better living or working environment, but also in a longer equipment life and lower operating costs. Remember that filters are the first line of defense against environmental pollutants, so it is never worth saving on their quality.
Regularly check and replace your SALDA recuperator filters, consult with specialists regarding your specific needs, and use only certified products that meet international standards. This way, you will ensure optimal conditions in your home or work environment and maximum comfort for everyone in the premises.
Frequently asked questions
How often do SALDA heat exchanger filters need to be changed?
Many experts recommend replacing every 3 months or as indicated by your device's sensor. Monitor your filters and replace more frequently during higher pollution or pollen season.
Which filter class (G4, F7, HEPA) is best for my SALDA device?
G4 is good for coarse dust; F7 or HEPA is better for allergens and fine particles. Check your model manual or consult your installer for best results.
Can I use non-original filters in my SALDA recuperator?
Although some non-original filters are suitable, for best performance and warranty protection, it is strongly recommended to use original or ISO 16890 certified filters.
What are the signs that my SALDA filters need to be replaced?
Reduced airflow, odors, increased noise, or warning lights on your control interface are all signs that it's time to change your filters.
Where can I buy authentic SALDA recuperator filters online?
For original, quality-guaranteed filters, it is advisable to purchase from authorized distributors or specialized stores that offer certified products for your specific model.