> Fresh air filter replacement for housing companies
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Fresh air filters

# Fresh air for every apartment

The filter in a fresh air vent stops street dust and pollen before they reach the indoor air. A clogged filter weakens ventilation. We replace the fresh air filters in every apartment on the same round.

[Request a quote](https://huoneistokierros.fi/en/contact/#kartoitus)

Fresh air filter replacement

from €14.50 per filter

Prices incl. VAT (25.5%). [Full price list](https://huoneistokierros.fi/en/pricing/)

![Replacing the filter in a ceiling air vent](https://huoneistokierros.fi/_astro/ilmanvaihto-suodatin.CpmrnVwE_1qNab5.jpg)

What the work includes

## Fresh air filters in one visit

-   New fresh air filters for all the agreed apartments.
-   We replace Biobe and Velco Original 3M filters and all other common filter brands.
-   Removing the old filters and fitting new ones: the filter and the fitting are included in the price.
-   Replaced filters are recorded apartment by apartment in the report.

Why it's worth it

## A dirty filter shows in the indoor air

In blocks of flats, replacement air often comes in through fresh air vents in the upper window frame or the outer wall. The vent filter collects dust, pollen and soot from the outdoor air. When the filter clogs, less air comes in: the apartment feels stuffy, moisture is removed more slowly and replacement air may find its way in through leaks.

Replacing a filter is a small job, but it is easily forgotten. When the filters are replaced in every apartment at the same time, the ventilation of the whole building stays balanced and the board knows when the filters were last changed.

See also [how to keep a housing company's ventilation in good order](https://huoneistokierros.fi/en/knowledge-base/housing-company-ventilation/).

How it is done

## As part of the apartment round

1.  ### Agree and inform
    
    We agree the timing of the round with the board or the property manager. Residents are notified in advance.
    
2.  ### Visit every apartment
    
    We carry out the work in all the agreed apartments on the same round, so access to each apartment is needed only once.
    
3.  ### Report
    
    Findings are recorded for each apartment in an electronic report, showing the board what has been done and what is worth keeping an eye on.
    

Any other work needed can be done on the same round. [See all services →](https://huoneistokierros.fi/en/services/)

Fresh air filters

## Frequently asked questions

How much does filter replacement cost?

Replacing a fresh air filter costs from €14.50 per filter. The price includes the filter, the fitting and VAT. The final price depends on the filter model and quantity. It is agreed in advance.

Which filter brands do you replace?

We replace Biobe and Velco Original 3M filters and all other common filter brands.

How often should the filters be replaced?

The general recommendation is to replace fresh air filters 1–2 times a year. Next to a busy street the filter gets dirty faster.

Will the filter fit our vents?

There are many kinds of fresh air vents. At the free assessment we check what kind of vents the housing company has and which filter fits them.

Why replace them in every apartment at once?

That way every apartment gets equally good fresh air, and the replacement does not depend on individual residents remembering to do it. The other work on the round can be done on the same visit.

Knowledge base

## Read more on the topic

-   ![Replacing an air vent filter](https://huoneistokierros.fi/_astro/ilmanvaihto-suodatin.CpmrnVwE_1qNab5.jpg)
    
    9 September 2026 · 7 min read
    
    ### Housing company ventilation: responsibilities, upkeep and advice
    
    Who is responsible for ventilation in a housing company, how to spot problems and how often to change filters? A practical guide for boards and residents.
    
-   ![Bathroom with a wooden vanity unit and a window](https://huoneistokierros.fi/_astro/kylpyhuone-puu.B63bpMPS_ZQMinH.jpg)
    
    8 September 2026 · 9 min read
    
    ### Moisture problems in a housing company: signs, reporting, liability
    
    A moisture problem often starts with a small observation. Which signs to take seriously, how to report them and how responsibility for the damage is divided.
    
-   ![Laundry drying in the autumn courtyard of a block of flats](https://huoneistokierros.fi/_astro/sisapiha-pyykit.CxRPzYH8_Z1w97aG.jpg)
    
    4 September 2026 · 6 min read
    
    ### Autumn maintenance: getting a housing company ready for winter
    
    In autumn a housing company gets ready for winter: gutters, heating, ventilation, outdoor lighting and the yard. A checklist and tips on recording findings.
    

Free assessment

## Let's replace your housing company's fresh air filters

Call us or send a contact request. The assessment and advice are free of charge. We can visit the property if needed.

[Send a contact request](https://huoneistokierros.fi/en/contact/#kartoitus)[Call +358 10 666 9988](tel:+358106669988)