Why buy one? I would rather spend the money I save on more wood!

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Project by Brian Brace Fine Furniture Maker posted 09-22-2012 02:43 PM 4118 views 19 times favorited 18 comments Add to Favorites Watch

This is the new air circulator I just build about 6 weeks ago. I was waiting to post to see how well it works and it is as good or even better than some that have been in shops I have worked in. It cost about $110 all together and all it is is a box out of ultra light mdf and a squirrel cage blower from a hvac. You mount it in the box and frame around the blower. The blower is going to suck air to the circulator and you put a filter at the one end to catch the dust! I will fill in more but running out to go camping! Any questions please ask and I will answer. Sorry first picture is not up right.

Brian Brace
Furniture maker

-- Brian Brace Fine Furniture Maker,Blk Mt NC

18 comments so far

View Dusty56's profile


11777 posts in 2725 days

#1 posted 09-22-2012 03:08 PM

Ahhh, the money I could have saved : (

-- I'm absolutely positive that I couldn't be more uncertain!

View DIYaholic's profile (online now)


17605 posts in 1712 days

#2 posted 09-22-2012 03:10 PM

I have about the same amount of money into my shop made air cleaner. It really is a simple build. I still need to install it though.

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View longgone's profile


5688 posts in 2345 days

#3 posted 09-22-2012 03:31 PM

I have three of these in my shop that I made. Two were from plywood I had in the shop and I bought plywood for the third one. At first I used the washable electrostatic filters (two on each box) but they allowed too much dust through them. I soon discovered the are not as efficient as the disposable paper pleated filters.

View AKSteve's profile


453 posts in 1340 days

#4 posted 09-22-2012 03:41 PM

nice! what kind of filter is that?

-- Steve - Wasilla, Alaska

View HorizontalMike's profile


6975 posts in 1951 days

#5 posted 09-22-2012 08:37 PM

Way to go Brian,
I had to replace my AC/furnace this past Spring. I kept the furnace unit and squirrel cage fan, just for such a project. I need to get moving on my version ASAP.

-- HorizontalMike -- "Woodpeckers understand..."

View SuburbanDon's profile


487 posts in 2031 days

#6 posted 09-22-2012 10:01 PM

Very Nice. My filter is a $16 box fan with a standard and then a HEPA filter duct taped to it. Not sure how effective it is. But it does collect dust.

-- --- Measure twice, mis-cut, start over, repeat ---

View Grumpymike's profile


1591 posts in 1352 days

#7 posted 09-22-2012 10:25 PM

Yah, I use the box fan with the two filters too … collects alot of very fine dust. I added a gutter at the botom so the lose dust falls into it, when there is a layer of dust in there it’s time to clean/change the filters.

-- Grumpy old guy, and lookin' good Doin' it. ... Surprise Az.

View Knothead62's profile


2363 posts in 1998 days

#8 posted 09-22-2012 10:30 PM

Box fan, bungee cord and furnace filter! Wife saw it on TV on a home remodeling show. It works! I vacuum the filter with a Shop Vac frequently.

View chopnhack's profile


373 posts in 1431 days

#9 posted 09-23-2012 01:06 AM

That is awesome Brian!! That’s the way to do it. :-) For anyone with 8’ ceilings think about putting it in the attic ;-)

-- Sneaking up on the line....

View helluvawreck's profile


18732 posts in 1903 days

#10 posted 09-23-2012 11:01 AM

Nice job. It looks like it will work real good.

helluvawreck aka Charles

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View cutworm's profile


1074 posts in 1830 days

#11 posted 09-23-2012 01:32 PM

Some inventive people on this site. Great ideas.

-- Steve - "Never Give Up"

View lcwood's profile


87 posts in 1801 days

#12 posted 09-23-2012 02:21 PM

nice post
if possible, please, inside photos

I wanna make one with used parts

View apbeachy's profile


20 posts in 1314 days

#13 posted 09-23-2012 02:40 PM

Great idea. More inside pics please

View KarenW's profile


131 posts in 1225 days

#14 posted 09-24-2012 04:26 AM

I use something similar in my finish shop—nice big squirrel cage fan inside a box with double filters on it – a looser filter on the outside, heavier on the inside. I just picked up a smaller unit a couple weeks ago and want to build one for over my workbench in the home shop where I woodburn and use the dremel a lot. I love to burn but hate smelling like a campfire at the end of the day and I think this would pull the smoke up and away without cooling my pens.

-- Happiness does not come from doing easy work but from the afterglow of satisfaction that comes after the achievement of a difficult task that demanded our best. --Theodore I. Rubin

View wdworking's profile


31 posts in 1438 days

#15 posted 09-25-2012 12:24 AM

Like it. Just built one myself from a free HVAC motor and squirrel cage and case. Used left over scraps of 3/4 ply. I put my on a shelf over by a wall. If I put mine up on the floor joist, the family room above would feel the vibration.

-- Craig

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