Air filter

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Project by schloemoe posted 03-29-2012 03:34 PM 2429 views 6 times favorited 17 comments Add to Favorites Watch

I couldn’t afford a factory built air filtration system so I built my own. I picked up 2 cage fans at a yard sale 1 big one, seen here and a smaller one. I know this is not as pretty as it could be I should have built the cabinet and installed the fan in that .Instead I built the cabinet around the fan and made a lot of mistakes . It’s been up in my shop for about 2 days and I have already noticed a differance in air quality. It works for me and I beleive functionality is better than beauty. thanks for looking…...........................Schloemoe

-- schloemoe, Oregon , http://www.

17 comments so far

View a1Jim's profile


117722 posts in 4087 days

#1 posted 03-29-2012 03:40 PM

function is everything ,Looks like a winner Rick.

View sandhill's profile


2128 posts in 4433 days

#2 posted 03-29-2012 04:13 PM

as Jim said Function is what we look for, Nice job.

View LesB's profile


2202 posts in 3953 days

#3 posted 03-29-2012 04:38 PM

They work great. I made my first one about 15 years ago and have been passing the idea along since.
I have my current one built into a floor cabinet on wheels the top of which also serves as my sharpening center. An additional benefit is that I can use it to circulate the heat from my wood stove around the shop so the whole thing does triple duty. Most heating contractors will sell used ones for salvage value.

-- Les B, Oregon

View FirehouseWoodworking's profile (online now)


743 posts in 3783 days

#4 posted 03-29-2012 04:41 PM

Filters dust? => Yes => PRICELESS!!

Great job and I’m sure your lungs will thank you!

-- Dave; Lansing, Kansas

View sillac's profile


644 posts in 3274 days

#5 posted 03-29-2012 05:05 PM

Great idea, I also have a squirrel cage fan and will be using it in a dust filtering system. It is a fact that great minds think alike. LOL I see you used furnace filter(s). What can you tell me about the filters you used and are you satified with the set up?

-- Steve in Oregon,

View Joe Lyddon's profile

Joe Lyddon

10737 posts in 4562 days

#6 posted 03-29-2012 05:24 PM

I guess I should visit more Yard Sales! LOL

I helped a friend a little bit tearing out part of his kitchen so he could remodel it. In the process, there was a small turbine motor that came out of the old stove hood… I asked if I I could have it… I got it… and made a small Dust Filter that I hang from the ceiling… it’s amazing how such a small unit can do so much good!

Your unit must really ‘haul ass’ cleaning the air in your shop! Doing a fantastic job!

Great unit!

Thank you.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: ... My Small Gallery:

View schloemoe's profile


709 posts in 3448 days

#7 posted 03-29-2012 05:32 PM

The filters are some that I picked up a used hardware place ( has a little of everything for building) I really want to go to a little better filter in the future but I got these for $.50 each and there is 6 of them. My only complaint would be that they seem to fill up really fast…...............Schloemoe

-- schloemoe, Oregon , http://www.

View Joe Lyddon's profile

Joe Lyddon

10737 posts in 4562 days

#8 posted 03-29-2012 06:16 PM

I place a sheet of :
(cut off enough to cover it… from a roll)

Non-Woven Interfacing over the front that catches a lot of the stuff before ahead of the main filters.

It’s easy to change… kinda just sticks by itself…

Now, you say what is “Non-woven Interfacing”?
It’s from the sewing world… from fabric shops… not very expensive… it goes a long way before you have to change it… It’s used to firm-up things like collars so they don’t flop around so much… a liner type of use.

Hope this helps.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: ... My Small Gallery:

View LesB's profile


2202 posts in 3953 days

#9 posted 03-29-2012 06:32 PM

I use a dual filter system. One of the inexpensive ones on the outside and a quality one behind it. Seems to work quite well. I can usually blow the filters out with my air compressor several times before I have to replace them. The blower side of my Craftsman vacuum would work too.

-- Les B, Oregon

View Ben Simms's profile

Ben Simms

191 posts in 2801 days

#10 posted 03-29-2012 07:01 PM

Nice! I hate dust.

-- I played with Legos as a kid and I never had the part I thought I needed, so I learned to improvise. Now I'm an engineer with a woodworking hobby.

View Beginningwoodworker's profile


13345 posts in 4183 days

#11 posted 03-29-2012 10:52 PM

Nice idea!

View jack1's profile


2130 posts in 4537 days

#12 posted 03-29-2012 11:20 PM

Looks like it works!

-- jack -- ...measure once, curse twice!

View Bearpie's profile


2601 posts in 3528 days

#13 posted 03-30-2012 12:26 AM

Schloemoe, Be glad you just have to clean the filters instead of hacking out your lungs! I have an air filtration unit and love it, I turn it on before doing anything in the shop that will create dust. This looks good!

-- Erwin, Jacksonville, FL

View Martyroc's profile


2712 posts in 2815 days

#14 posted 03-30-2012 03:43 AM

Nice, I’m working on one myself.

-- Martin ....always count the number of fingers you have before, and after using the saw.

View lew's profile


12860 posts in 4265 days

#15 posted 03-30-2012 04:01 AM


Mine is mounted in the window to vent outside. The only precaution for me is to make sure the furnace is turned off, in the winter. These things can pull furnace fumes into the shop.

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

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