Air Filtration System - Router Forums
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post #1 of 16 (permalink) Old 06-18-2008, 10:46 AM Thread Starter
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Default Air Filtration System

I was think I could build my own air filtration system using an old vacuum cleaner. The one I have has a speed rating of 300 to 1000 CFM. I would make the box out of wood and buy the filters. I think I put the whole thing together for about $50 to $75.
I'd like members input on whether this is a good project or it just won't work.

Thanks for you input
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post #2 of 16 (permalink) Old 06-18-2008, 10:59 AM
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Hi Rolf


You know I like to make my own most of the time but this is one time you may want to just buy one,,,

I was looking on Graigs list and I saw one ( JET ) for 75.oo bucks like new in the box.with the remote control and with all the stuff to hang it up..that was about 3 weeks ago...so to say it pays to look b/4 you jump..

http://www.craigslist.org/about/cities.html


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Quote:
Originally Posted by rmaxa
I was think I could build my own air filtration system using an old vacuum cleaner. The one I have has a speed rating of 300 to 1000 CFM. I would make the box out of wood and buy the filters. I think I put the whole thing together for about $50 to $75.
I'd like members input on whether this is a good project or it just won't work.

Thanks for you input



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post #3 of 16 (permalink) Old 06-18-2008, 11:24 AM Thread Starter
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Thanks BJ, I may have to wait till Christmas, if I can't find one on Craigslist in my area.
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post #4 of 16 (permalink) Old 06-19-2008, 09:46 AM
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Hi, part introduction and part answer. My names Lee and fairly new, this is my first post but I did something similar 7-8 months, found a squirrel cage fan ~750cfm for $30 picked up some furnace filters then picked up a 1 hour timer($30) and the rest was just scraps of plywood and an old extension cord, works really well
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post #5 of 16 (permalink) Old 06-19-2008, 02:42 PM Thread Starter
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Thanks Lee, if I don't fine a Air Filtration unit on craigslist in the area, I'm going to try using my vacuum cleaner. The unit has everything I need except the filters.
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post #6 of 16 (permalink) Old 06-19-2008, 03:33 PM
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The only thing I would worry about with a vacuum cleaner motor is the duty cycle rating. I don't know how long the motors are designed to run.

I have a home built unit using an old air handler motor. It's too big of a fan without having some sort of exhaust ducting on it to choke the airflow. It worked OK, but it works better now as a circulating fan on the really muggy, humid days. I have a handful of electrostatic air filters that do a great job of catching dust and are easy to clean. The bracket with one screw pops off and I swap out filters and clean a bunch at once.

I picked up a Jet ambient air cleaner off of craigslist for cheap and it works great. It is smaller, quieter, has 3 speeds and auto shut-off.
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post #7 of 16 (permalink) Old 06-19-2008, 10:55 PM
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Remember you can find HEPA filters used for very little money, such as a Honeywell with a high flow rating. These filters are made for the exact purpose of cleaning fine particulates from the air and used will run $20-$25. Compare this to a Sears HEPA filter cartridge for a shop vac costing around $45 and it's no contest.

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post #8 of 16 (permalink) Old 07-02-2010, 12:23 PM
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i have same air filter system, i love it works real good im real happy with , the down side is to replace that out side filter cost alot of money, y should just dust it off and put it back, but i got rid of it, now im using one of those filters for the for the ac unit
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post #9 of 16 (permalink) Old 07-03-2010, 12:09 AM
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I built one out of an old furnace blower motor as well. Picked it up for 20.00 on Kijiji. Works very well!

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post #10 of 16 (permalink) Old 07-04-2010, 05:47 AM
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I have the Jet 1000B and it is worth every penny. It runs all the time I am in the shop and I never see dust in the air. The reason for this I believe is the filters; It has two, the one outside and the one behind it. The first captures the large particles; I clean this one sometimes daily Pic 2. The second has a large surface area to keep the air moving and is good down to 1 or 2 microns Pic 2. I clean this one every week or two depending on what is being done in the shop. I blow down the shop at least daily, with the Jet running most of the dust is captured by the unit.

There are a few things I will build for myself; I just do not possess the knowhow for this. I have had it about 8-9 months and think it has been money well spent. If someone wants to make their own, buy the filters and build it around them.

BTW Some dust will make it through all these filters.

Pic 1 the Jet unit
Pic 2 the outer filter
Pic 3 the inner filter
Pic 4 the inside of the unit
Pic 5 the inner filter in the unit turned on.
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