It comes with a 4" intake hose and 4" exhaust into a Bag (the filter) that catches the dust. Just remove the bag and add a 4" exhaust hose to the great outdoors. I think this will work, I can't do it until I figure out how to get the hose outside without letting the -20 deg. air in.

Buddy


"Keep the shiny side up....."
'50 GMC Suburban
'55 1st Chevy Pickup
http://community.webshots.com/user/buddyinak