I'm thinking of putting my dust collector outside my small shop. I was going to drill a hole in the wall so I could put the suction hose through. The question is has anybody put a second hose into the room so the intake air for the DC comes from the shop thus making the pressure balanced and not sucking all the conditioned air out of the shop? Otherwise I would think there would be a vacuum in the room. What do you think? Thanks for any ideas.