Raised on the Erie Lackawanna Mainline- Supt. of the Black River Transfer & Terminal R.R.
I bought the Badger small Booth which is the one in the micromark catalog and I vented with supplied hose and vent through a Basement window(removable).It works just fine for N scale,If I were modeling in a Larger scale probably would like something larger.Bought this on Ebay brand new for $99.00.Back Draft is very good and setup is easy.Hope this helps.
Hogwire