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Fume exhaust/dust collection combo solution, opinions please

JCByrd24

Well-known member
Joined
Jul 21, 2005
Messages
493
Location
Bath, ME
I haven't built my garage yet and am doing a lot of work in the basement right now ranging from woodworking to drywalling. I'd like to be able to do some spray painting and similar work down there without too much worry of fumes/dust so I've been considering different options for dust/fume mitigation and exhaustion. Also keeping in mind I'd like the solution to carry over when the garage is built and be relatively inexpensive.

I first notice this problem when doing a little drywalling (sanding), so I considered an ambient air filter similiar to this:
G5955.jpg


Key problem is no ability to exhaust really. So kept looking. Saw a post on here about using a shop vac with the outlet directed outside, ok, but not ideal due to noise. At this point I also was hitting some posts about paint booths and the fire hazards associated with fans and started considering something like this because I may be doing some painting and/or use of stuff like carb cleanter:

attachment.php


This would probably be a good choice, but no real versatility. Also will have a blast cabinet some day so something I could use with that would be good too. So now...I'm thinking a portable dust collector, like:

G1163.jpg


What I would do is have a pipe with louvers in the basement and garage that I could hook up to so I could exhaust out instead of through the bag. I'd probably also set it up with a cyclone type thing to collect solids when exhausting outside. Cool thing about this option is I can focus the collection where I need it for welding, sawing, or just have it running for general air exhaust. Now here is my concern....it appears that the fire hazard would be mitigated with this because of the motor being on the back side of the impellar. Obviously not perfect, but better than what some people are getting away with using box fans etc. Also I'm not planning an serious painting or use of flammable solvents, especially in the basement...any thoughts.
 
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trovato

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Joined
May 10, 2005
Messages
415
Location
Putnam Valley, New York
Something like that portable Grizzly unit looks like it has potential. It does have a TEFC (Totally Enclosed, Fan Cooled) motor, which while not explosion-proof, is probably the next best thing. What about putting the unit outside, and just running the intake duct through the wall? That should keep the noise down (for you anyway) and keep the motor in fresher air. Of course, I don't know how loud it is, or how close you are to the neighbors. The cyclone separator would probably be OK too, but keep in mind that this type of unit is not intended to pick up big pieces of stuff. I suppose a separator on the intake side would actually help protect it. And I wonder if it would be possible to use some sort of speed control with this kind of motor. It's nice if you don't have to have a hurricane every time you want to do something little. I see Delta makes a a portable dust collector:

http://www.amazon.com/gp/product/B00006K007/?tag=atomicindus08-20

and so does PSI:

http://www.amazon.com/gp/product/B0000223WS/?tag=atomicindus08-20

If you decide to get one, let us know how it works out!

-Steve
 

Bradley Miller

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Joined
Mar 29, 2006
Messages
246
Location
Blue Springs, MO
During my drywalling I just grabbed a box fan, furnace filter, and some cardboard/duct tape and built an impromptu version of that little air filter gadget. I'm sure with some creativity you could even do a more elaborate version. I'm having thoughts on that since my garage is right under my bedrooms in the house -- I want to do some painting and fiberglass projects, but I don't want the fumes. I at least have a window that I can use to cross ventilate, and if I crack the garage door I can pull air in from there.
 
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JCByrd24

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Joined
Jul 21, 2005
Messages
493
Location
Bath, ME
Thanks for the input guys. I continued to do research after my original post and I think I will go with a portable dust collection unit as my source of vacuum (probably craftsman). For dust and wood working applications I am going to use a cyclone type 2 stage setup, with a homemade cyclone top on a trash can. I found some threads on some wood working forums and people really like this setup...it keeps the amount of dust/debris in the actual bag really low which is good because the air flows through the bag. In general I will actual probably route the outlet of the dust collector out a window instead of into a bag for low maintenance and better air quality inside (don't have to rely on the bag to catch the fine dust particles). I'll remove the bag and cyclone setup for general fume exhausting (welding, paint) etc and add a filter on the intake if necessary to catch some of the paint. As trovato pointed out, this should be pretty safe due to the TEFC motor and also the motor being out of the airflow path. Not sure when this will get setup, but I'll let you all know how it works...oh, FYI...most of these dust collectors are rated around 62 dB, compared to over 80 for a powerful shopvac...very good news in terms of noise.
 
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rodwerkz

Well-known member
Joined
Apr 3, 2006
Messages
46
Location
bayonne nj
i have a really cool exhaust hood in my garage that i built from a two speed industrial fan and some scrap ply wood. Great for painting.. i open my overhead a crack and get a great crossflow.. workst great running a car indoors too. I built a frame on the inlet that takes generic air conditioning filters so i don't piss off my niebors.. i'll post pics tonight..
 
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