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Air Filter

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Project by djang000 posted 12-29-2012 04:15 PM 1857 views 8 times favorited 5 comments Add to Favorites Watch

Hey guys

First project for the shop I thought to share with you. My shop is basically just a small portion of the basement so dust is always an issue. After seeing some nice ideas for air filters from fellow LJs, I decided to give the concept a tried. I bought a real cheap fan for 20$, and grabbed some 3/4 MDF left over from a friend’s project and here you go. The whole thing is quite large actually for my taste. It was more of an experiment than a real project at the start, so I decided to go with 3 filters (furnace filters, 0.99$ each); 1 at the entry, 2 at the exit. Turns out that 2 at the exit is overkill a bit and reduce the air flow. So picture 3 gives you how all this is made, and picture 2 shows the entry filter after an afternoon use. I wired it with a dimmer so I can turn the noise down a bit when working and put it in full speed when I leave the shop.

All comments are welcomed!

sam





5 comments so far

View a1Jim's profile

a1Jim

112104 posts in 2235 days


#1 posted 12-29-2012 04:17 PM

A good build,looks good.

-- http://artisticwoodstudio.com Custom furniture

View Greg..the Cajun  Box Sculptor's profile

Greg..the Cajun Box Sculptor

5110 posts in 1966 days


#2 posted 12-29-2012 04:45 PM

Nice build…I have made 3 of these for my shop and use 2 filters on the intake side so as not to get dust in the motor and shorten its life. They work really good..

-- If retiring is having the time to be able to do what you enjoy then I have always been retired.

View Ken90712's profile

Ken90712

14947 posts in 1846 days


#3 posted 12-29-2012 05:34 PM

Nice work, I have had a furnace blowere for yr on the shelf to make one of these that i never have gotten to. Maybe this will motivate me some. Nice work.

-- Ken, "Everyday above ground is a good day!"

View JNP's profile

JNP

106 posts in 1235 days


#4 posted 12-29-2012 05:40 PM

Very nice build. I just replaced my furnace so this project is high on the list. Is it standard to have the air intake top and exhausting out the bottom?

-- Jeff

View djang000's profile

djang000

32 posts in 790 days


#5 posted 12-29-2012 06:22 PM

Hi Jeff. Good question. Must designs that I have seen so far use a furnace fan, so the intake/outake are usually on bpth side. Since I had to go with a bottom/top design, I figured that I wanted the air flowing to the floor instead of hitting the ceilling and moving more dust into the air. But I don’t have any definite answer on this. Fortunately, I could just swap the fan upside down to change the direction of the flow if I want…

Ken; you should definitely try this. Just look at the picture of my filter, after 1 afternoon in the shop to realize that all this goes into your lung / everywhere in the house! :D I guess this design isn’t nearly as efficiant as the profersionnal one, but for 30$, it’s a no-brainer IMO.

sam

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