[AngelaS]

Originally Posted by Larysa

I have seen similar in studio here
https://www.sentryair.com/blog/art-m...me-extraction/
They must be expensive. Saving on heating ?

Ya, that's what I'm afraid of but maybe I can find a used one for sale. I'll let you know what I find out as I requested a quote from the company Sentry.
Cheers!