Shop-Built Air-Filtration system

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Project by rod66 posted 01-09-2011 05:05 AM 6407 views 17 times favorited 11 comments Add to Favorites Watch

I ask a friend who installs heating and cooling for a used squirrel cage blower. Couple of day later he show up like a true friend with a blower in hand. He subscribed to the theory more is better and brought me a commercial blower. I had plan to make me a air-filtration system. A year later, I found the time this weekend. I thought before I went through the trouble of building a box, I need to make sure this blower even operational. So took an old power cord and wire it to the blower. When I plugged it to the wall plug, the blower roar to life, spewing a years worth of shop dust in to the air. Once I caught my breath, I was pleasantly surprise that the blower ran perfect. With no more excuses I drew up a air-filtration system in sketchup . So this weekend I finished! The box is 3/4 poplar I had left over from another job. On the in take of the box I install a frame to hold a two filters ( 24 X 24).With such a large blower I went with the larger filters. I built a hatch on the side to access the filters.On the out take side I installed another filter. (12×15). So the air is filtered through three filters. I hung the box from my ceiling with eye bolts and hard wired it to the house with a timer. So now as I head up stair from my shop my filter system runs for an hour clearing the air. The finish size is 25 1/2’’, high, 36” long and 24’’ wide.I put a like to my sketchup model. I ran the filter for about 30 today and the filter already had a brown tint to it. Better in the filter than my lungs!

11 comments so far

View Ken90712's profile


17563 posts in 3210 days

#1 posted 01-09-2011 05:16 AM

Nice, I have a blower and this on my To Do List. Well done.

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

View TelescopeMaker's profile


77 posts in 3042 days

#2 posted 01-09-2011 05:35 AM

Is that 110 or 220? I’ve got a 220 blower from my own house that I kept, but I don’t have 220 in my shed :(

-- Telescope Maker, Woodworker, Brewer, Gizmologist, Gardner, Lawn Mower

View DaddyT's profile


267 posts in 3532 days

#3 posted 01-09-2011 05:53 AM

@TelescopeMaker, You can get a converter/reducer to pull it down from 220 to 110. I bought mine at the heating and air place I got my blower from. The blower was free but I paid the guy to wire mine cause I didnt know how. The reducer cost like $20, paid him $15 to wire it for me.

-- Jimi _ Measure twice, cut once.......@#%#$@!!!......measure twice, cut....

View Joedcatman's profile


172 posts in 3137 days

#4 posted 01-09-2011 06:00 AM

WooHoo! I like it. This will definitely be my next project. I built my $2 dust collector for my machines but still end up with a LOT of dust floating around in the air. Thanks for a great idea.

-- JoeR Nothing that I could make will ever be perfect but I'll use it anyway.

View rod66's profile


45 posts in 3733 days

#5 posted 01-09-2011 06:13 AM

The blower is 110…..It puts out a pretty strong exhaust . So I positioned the intake toward the main work area of my shop and the exhaust away from the work area. I am hoping the set up will clean the air, while at the same time no cause a dust storm with the exhaust.

View dbhost's profile


5723 posts in 3254 days

#6 posted 01-09-2011 06:18 AM

Very nice build. I had a few of those large blowers cross my path, and they were all dead as a doorknob… So I bought mine. I would rather have built one…

-- Please like and subscribe to my YouTube Channel

View Gator's profile


383 posts in 3698 days

#7 posted 01-09-2011 06:27 AM

I built one for my shop as well, they are great. Mine is smaller, it takes 12”x24” hepa filters, on two sides. Draws air in on both sides, and exits out the front.. you don’t realize how much dust they collect until you look at the filters after a busy day.
This one belongs on monster garage.. it would likely pick a small child up and stick him to the filters..LOL

Great job, I know you will enjoy it.


-- Master designer of precision sawdust and one of a kind slivers.

View DragonLady's profile


298 posts in 3029 days

#8 posted 01-09-2011 07:37 AM

wow, that looks like one heck of a filter :)

I’d probably find a shop cat stuck to the filter!

-- A woman's work is never done-but power tools help!

View Maveric777's profile


2693 posts in 3098 days

#9 posted 01-09-2011 04:21 PM

Very well done! I too have one of these jewels on my “To Do” list….. Hope mine turns out as well as this one…. Thanks for sharing….

-- Dan ~ Texarkana, Tx.

View SgtSnafu's profile


960 posts in 3293 days

#10 posted 01-10-2011 04:44 PM

Looks great – I too have one on my todo list..

Thanks for sharing

-- Scotty - aka... SgtSnafu - Randleman NC

View NBeener's profile


4816 posts in 3196 days

#11 posted 01-10-2011 05:32 PM

That’s about as good as it gets !

Nice job !

You think about putting a timer—multiple hour timer—instead of an on/off switch ?

Nice to have the thing run for a couple hours, after you leave the shop.

-- -- Neil

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