ᐅ Are PVC ventilation ducts safe regarding harmful substances such as plasticizers?

Note: According to studies, rigid PVC is perfectly fine and is commonly used (I also use it for my decentralized units). To be 110% sure, use aluminum/galvanized pipes and/or spiral-seam ducting.

Health issues typically arise—like so often—only from lack of maintenance or similar problems. If no one cleans the filters for over 10 years, they can become breeding grounds for germs. A little condensation on the outside of pipes is not a problem (so please ensure a slight slope for decentralized systems as well—it only concerns the area where warm, humid air meets the cold from outside).

nordanney schrieb:

Note: Rigid PVC is considered safe according to studies and is commonly used (I also have it in my decentralized units). To be 110% sure, use aluminum/galvanized pipes and/or spiral-seam pipes.

Thank you! Very interesting. Are these white PVC pipes all made of PVC-U and therefore free of plasticizers?

By the way, I just noticed that the original Meltem pipes are made from ABS.

RealUnreal schrieb:

Thank you! Very interesting. Are all these white PVC pipes made of PVC-U and therefore free of plasticizers?

Are they completely free? I don’t know. But at least the concentration is so low that they are approved for ventilation use.

I have found a suitable angle made of ABS plastic.
At the moment, I am still looking for an appropriate sealant that does not emit harmful substances after it has fully cured.