Bob,
That's just a simple fan blowing into the neighborhood... yes?!
I have the typical portable box fan with a HD heater filter wrapped to the front with the power cord. When I go into a sanding session, I have that fan running pointing out the garage door (to the neighborhood
) as well as having the shop vac doing it's thing... but it doesn't get it all.
Is your exhaust fan pointing to a vacant lot (large empty space)?
It looks like your fan is
so powerful, that it may blow all your dust out the side of your shop to only be sucked back in the front door!
Yes?