Just wanted to add - I taped the seam on the inline fan last night after posting this. Smell is still coming out of the fan exhaust. I love that aroma, very heady, but it's not practical circulating it throughout the house.

All I can come up with is either the air is moving through the filter too quickly, or the filter is undersized for the application. I've emailed the supplier with questions, but if past history is any indicator, I won't get much of an answer.

If it helps any, 3 adjacent sealed rooms, 1340 cu ft total, with the 420 cfm fan exhanging the air every 3 minutes or so. This is really making me nuts, I've searched and searched and have not found any answers. If this unit had been in service for awhile, ok, replace the filter, but almost new and not removing the odor, I'm stumped.

Anybody? Bueller? Anyone? Anyone? Please help a newb out.