Bumping an old post but there's lots of great info and experienced people here, and hopefully someone can answer my questions please.
I have a 6'' fan rated at 350 CFM with a speed controller and 10 different speeds. If i set it on speed 1 it should pull 35 CFM, right?
And if i put a 6'' carbon filter rated also at 350 CFM, is this filter too big for a speed setting 1? Or is it actually better? What's the worse that could happen?
Also, i bought some insulated ducting for soundproofing, it doesn't say exactly what material is used but i assume it's rockwool? Can it trap moisture and grow mold?