Basically the title.
I suppose it is some kind of ventilation?

Also, which position would you typically put those latches into?

Thanks for your wisdom 🙏

by adequatebanana

16 comments

  1. Fresh air vent/filter.
    Usually kept open but can be closed during coldest days.

  2. It’s a vent for fresh air. The position of the latches may vary between models. Put your hand on top of the opening of the vent and try the toggling the latches. You’ll feel a breeze on your hand when it’s open. Generally I recommend keeping the vent open for getting some nice fresh air.

  3. Ventilation. You switch the switches to different sides depending on the season and it draws air in from outside

  4. Others have explained what it is, but if you want to Google it by yourself, it’s *raitisilmaventtiili*.

  6. The version I have at home has three positions: Kesä, talvi and kiinni. In English: Summer, winter and closed

  7. Gravity assisted ventilation. It works based on the assumption that generally the air inside your apartment will be warmer than the air outside.

    Somewhere in your apartment you will have an air ventilation pipe (in my apartment it’s the same pipe that the range hood above the stove uses) through which the warmer (and therefore less dense) air escapes your apartment pulling in new fresh air from outside through these vents above your windows.

    In winter when the temperature differences are significant you can totally notice the quite significant breeze that the system creates if you open a window or balcony door slightly.

  8. Reminds me of the time when I got sick of the windy noise coming from my windows and I thought it was a bad seal, then one day decided to randomly stand up on a stool and find out where the leakage was, only to learn it was coming from this, an open air vent.

  10. There’s a filter inside which you should clean 1-2 times per year, as they get full of stuff from outside air. If left uncleaned, the air flow will be restricted and the air becomes stale and moist.

  13. The vents in our house are open when the latches are in that position.

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