Kris Posted January 30, 2019 Report Share Posted January 30, 2019 Looking for info and insight from those who built their own spray booth. Will be spraying acrylics only. Booth will be around 20" (L) x 18" (H) x 16" (D) and looking to use an exhaust fan to pull the air through a filter to catch the overspray. Not sure about the fan size needed. Interested to know what kind of fan you use in your booth. I seen where people have used computer fans, bathroom exhaust fans, inline duct fans, etc. I've read where the fan needs to pull at least 200 CFM. Quote Link to comment Share on other sites More sharing options...
21xdc Posted January 30, 2019 Report Share Posted January 30, 2019 I'd get a 6inch with close to 400 cfms… Something like this... https://www.ebay.com/itm/Strong-CFM-Ventilation-6-Inch-Inline-Fan-Hydroponics-Exhaust-Cooling-Duct-Fan/192809769902?hash=item2ce45b9bae:g:ecAAAOSwX3ZcSMvl:rk:49:pf:0 Quote Link to comment Share on other sites More sharing options...
Basseducer Posted January 31, 2019 Report Share Posted January 31, 2019 I use the small dust collection system from Harbor Freight. Has an attached collection bag, is explosion proof and moves 660cfm. used some ducting and mounted it under the table. Works great and you will be able to use solvent based paints if you wish. Not the cheapest solution, but it works great for me. 1 Quote Link to comment Share on other sites More sharing options...
21xdc Posted January 31, 2019 Report Share Posted January 31, 2019 (edited) 45 minutes ago, Basseducer said: I use the small dust collection system from Harbor Freight. Has an attached collection bag, is explosion proof and moves 660cfm. used some ducting and mounted it under the table. Works great and you will be able to use solvent based paints if you wish. Not the cheapest solution, but it works great for me. Not a fan of HF tools. Edited January 31, 2019 by 21xdc Quote Link to comment Share on other sites More sharing options...
Kris Posted January 31, 2019 Author Report Share Posted January 31, 2019 16 hours ago, 21xdc said: I'd get a 6inch with close to 400 cfms… Something like this... https://www.ebay.com/itm/Strong-CFM-Ventilation-6-Inch-Inline-Fan-Hydroponics-Exhaust-Cooling-Duct-Fan/192809769902?hash=item2ce45b9bae:g:ecAAAOSwX3ZcSMvl:rk:49:pf:0 I assume you use this type of fan? Do you have pic of how you secured it to your booth? Quote Link to comment Share on other sites More sharing options...
21xdc Posted January 31, 2019 Report Share Posted January 31, 2019 I bought an 8in and it's not needed. I cut a hole in the top of this and sits down in it... Pics w/o fan... I recently upgraded to a $3,000.00 set up. Pics on bottom. 1 Quote Link to comment Share on other sites More sharing options...
BBK Posted January 31, 2019 Report Share Posted January 31, 2019 Mine uses DC computer fans (water based paint only), I don't know the CFM but its a lot. Enough that if you turn them around it will blow your eyes shut. I just framed my booth out of 2x2 and use old cardboard to line it, that way I can toss it and put new on when it starts to build up with the heavy overspray that doesn't go airborn and get caught by the filter. My first design had the filter at the top, and that did not catch it all.. I ended up getting color on my mask filters. Second design I moved it to the back and exhaust my air at my feet and that is catching and filtering it all but I find myself hitting it directly with overspray sometimes when I shoot at an angle. So I think I will redo it again, expand the back a bit and use a furnace filter design and put it at the angle like 21xdc had. I don't have the option to exhaust outside or I would do that for sure. Quote Link to comment Share on other sites More sharing options...
Kris Posted February 1, 2019 Author Report Share Posted February 1, 2019 23 hours ago, 21xdc said: I bought an 8in and it's not needed. I cut a hole in the top of this and sits down in it... Pics w/o fan... I recently upgraded to a $3,000.00 set up. Pics on bottom. Thanks ! for posting the pics. Do you think the filter placement works best when at a angle or does it matter? Quote Link to comment Share on other sites More sharing options...
Kris Posted February 1, 2019 Author Report Share Posted February 1, 2019 Any input of the minimum amount of air flow (CFM) needed to pull out overspray through filter? Quote Link to comment Share on other sites More sharing options...
21xdc Posted February 2, 2019 Report Share Posted February 2, 2019 (edited) 3 hours ago, Kris said: Thanks ! for posting the pics. Do you think the filter placement works best when at a angle or does it matter? I pour and airbrush both in these booths... The angle does both really well. My new one has 10in duct and really pulls a lot of air, But it's size is much bigger... Here it is w/o the $900 motor sold separately https://www.abt.com/product/126349/Thermador-48-Professional-Series-Stainless-Steel-Wall-Hood-PH48HWS.html Edited February 2, 2019 by 21xdc Quote Link to comment Share on other sites More sharing options...
21xdc Posted February 2, 2019 Report Share Posted February 2, 2019 I suggested in my first post that you should get a 6in with around 400 CFM's Quote Link to comment Share on other sites More sharing options...
