If you're going to pull air out of a building, you have to replace it. If
you don't put in a filtered make up air system, you may as well open the
door. You will be sucking in whatever air, dust, and pollen is outside
through cracks in windows, doors, siding, etc.
Most commercial paint booths nowdays use a push-pull ventilation system.
Air is filtered and blown into the booth, and then sucked out through
pollution control equipment and exhausted. The idea is to keep the booth
under a little bit of positive pressure. In severe climates, the incoming
air is also heated, air conditioned, or de-humidified to prevent damage to
Remember that many of these paint fumes are flammable and it's best to use
blowers with externally mounted motors to reduce the fire hazard.
As for the air compressors, using two in parallel, each with their own
receivers, should work just fine. The main thing is that they match up in
terms of output pressure ratings. You may want to set it up so the second
one comes on only when the first one can no longer maintain pressure.
Just a thought. Are you measuring pressure at the receivers or in the pipe
at the hose bib? If it is low at the hose and still high at the receivers,
your pipes are too small.
>I have a coupla questions regarding shop configurations. Maybe some of you
>I still need a little more confirmation that my idea of using two single
>stage air compressors in tandem will work to double the capacity. The other
>thing is, I have been priming all my sheet metal in the garage portion of my
>building. Its 6600 sq ft and the fumes and primer dust get into the rest of
>the building and really dust the place. This is unacceptable for the
>businesses we are in and I need to fix the problem. I am using a respirator
>but have no ventilation in the garage. When the air gets too thick to see, I
>normally just open the garage door. Problem is, we have lotsa wind here in
>Kansas and between that and the humidity, I wont be wanting to open doors
>for the epoxy and urethane coats.
>What kind of ventilation can i use? My thought is to buy a ventilation fan
>and install it in the garage wall. You know, the ones with the louvres that
>open and close so that you can close off the hole when you arent using it.
>Since I own the building, I have no problem cutting a hole in the wall, but
>I need some input. Like WHERE do you install it? High or low? Its a 14 foot
>ceiling. Seems the fumes collect high, but maybe someone knows more about
>Thanks for the input!
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959