Replies

1. 
   ring | Feb 15, 2006 01:23pm | #1

   Rick,

   I'm surprised none of the really knowledgeable people haven't answered yet.  I have no real understanding of the subject, just some intuition and experience.  My room is 9' x 11' x 9'H so it's very similar.  I have a 24" diameter exhaust fan behind large paper baffles on the outtake, and very large (most of the ceiling itself) intake filters.  It seems to work, that's all I can say.

   DR

2. 
   mudman | Feb 19, 2006 10:41pm | #2

   I am no expert but I can tell you what worked for me. I think that my fan is a around 10,000 CFMs and has a 2 horse motor. It was sized by the supplier based on the numbers I gave them. The booth is 10'x16'x10' high. I know that I could have gotten away with a lot smaller fan but this one makes my booth work as well as a premanufactured unit, and besides it was the minimum recomended. I think you are grossly undersizing the filter area. You will need at least triple that. No, I don't have any technical knowlage about sqft of filter per CFM, but I have been in a few comercialy made booths of around the same size and they usually have a whole wall of filters, at least two stages. I have 8 20"x20" filters in my booth, the supplier recomended twelve, I couldn't give up any more space for filters.There is a standard size filter for the industry (20" x 20") and you will save a lot of money if you size your filters to this. There is a cheep and effective filter material made from expanded paper that comes in bulk. It costs a lot less than using even the cheepest filters at Home Depot. 

   I recomend that you look online at the various configurations of booths and how they are equiped. If you size everything correctly your work will come out a lot better.

   Mike

1. 
   Rickk | Feb 21, 2006 04:07pm | #3

   Thanks Mike, I am now waiting for my fan to arrive, I thought my filter size too small.Where do I locate the economical filter material? Thanks   Rickk

1. 
   mudman | Feb 21, 2006 06:42pm | #4

   I buy mine from a local place in the Dallas Metro area. Here is an online source. http://www.airguard.com/paint-spray.html I've not ordered online but I think that the stuff I use is the exact product on the bottom of this page. The expanded paper media. The importaint thing is that the media is denser in the BACK and more open in the FRONT of the filter. This promotes the overspray to fill the filter from the back to the front so that you get to use all the filter. If you use a normal Home Depot filter it will clog to face of the filter instantly but most of the filter will remain unused. Some of the cheep paper filters do not have graduated media, at least that is what I was told. If you live in a Metro area there will be a spray equipment supplier near by. Look in the yellow pages under paint supply or spray equipment or automotive paint supply. The places that sell booth supplies are generally automotive paint supply houses.

   Mike

1. 
   Rickk | Feb 22, 2006 02:45pm | #5

   Thanks Mike for the info.   Rickkk