Hello guys,
I'm following this interesting thread for quite a time now.
Back here in Italy we are also aware about the in-house air quality, so i tried to give it a try on my own.
You can see my work-in-process project here:
cercaenergia.forumcommunity.net/?t=52867443
Sorry, only in Italian for now, if you wish to have some specific info about it I'll be glad to share