Hosby prefabricated house from 1983 - problematic indoor air analysis

But the manufacturer promises it on their homepage. I can't provide a link, but check out Florafilt. Or literally google "florafilt" "formaldehyde".

I think I have found a solution. Does anyone have experience with the air purifiers from Florafilt? According to the manufacturer, they should also filter out formaldehyde. However, I cannot find any information about the separation rate or what happens to the filtered formaldehyde. Also, you cannot order on the manufacturer's website [Link entfernt], and there are neither prices nor dealers. Where can I get this thing?

Then you might as well use "breathing" walls..

I think I have found a solution. Does anyone have experience with the air purifiers from Florafilt? According to the manufacturer, they should also filter out formaldehyde. However, I cannot find any information on how high the separation rate is and what happens to the filtered-out formaldehyde.

Doesn't it say how often you have to change the filter?

You cannot filter formaldehyde.

Maybe with an active chemtrail ionizer with magnetic resonance inverter?

Then you might as well take "breathing" walls..

However, for that he would first have to perforate the vapor barrier with a dough wheel, otherwise it only works poorly.

I think I have found a solution. Does anyone have experience with the air purifiers from Florafilt? According to the manufacturer, they should also filter out formaldehyde. However, I can't find any information on the filtration rate or what happens to the filtered formaldehyde. Also, you can't order on the manufacturer’s website [Link removed] and there are no prices or dealers listed. Where do you get this thing from?

With an activated carbon filter, you might manage to reduce the levels in a room to an acceptable degree, but what do you do in the other rooms in the meantime? Do you really want to have a fan running constantly in the house? Only a renovation truly eliminates the formaldehyde source in a sustainable way. Messing around with the symptoms would be silly. If this issue is already bothering you so much now, how will it be once you own the house? Do yourselves a favor and move on from this property.

At some point, you get an itch somewhere because of a mosquito bite and wonder if it’s the mosquito bite or actually the....x. In my house, I want to feel as comfortable as possible; I don’t want to have to think about such things.

Unfortunately, I couldn't convince my wife and had to spend a whopping €1150 on an indoor air analysis.

Smart woman, who didn’t let herself be convinced by now obviously embellished statements. Why did you even want to convince your wife if she understandably would feel uncomfortable there? You apparently won’t let it go, but your wife has long moved on. Don’t make a problem for yourself that you don’t have, and don’t look for any remedies.

Smart woman, who did not let herself be convinced by now obviously embellished statements. Why did you even want to convince your wife of it if she would understandably feel uncomfortable there?

I was quite relaxed about the topic and didn’t want to have an indoor air measurement done. It was a combination of:
“What I don’t know won’t hurt me” and
“Pollutants have long since dissipated after more than 40 years.”
Since my wife doesn’t study construction professionals in internet forums, but merely “heard somewhere” that prefabricated houses from the 70s and 80s were contaminated, I had to give in. And now we have the mess.
And you have to admit that here in the forum the viewpoint “long since dissipated after decades” clearly dominates. And I eventually believed that too. There are hardly any people who have ever come forward with real pollutant measurement values.