Poor boy Air filter

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Project by David "Lucky Dawg" Brown posted 03-13-2011 07:56 AM 6598 views 7 times favorited 6 comments Add to Favorites Watch

This is my homemade air filter!
I used a 20” three speed fan from walmart $15
and a 20” x 20” heater dust filter from walmart $4
So for just over $20 i made a simple but effective
air filter. i suggest you blow the filter out every hour
if your doing a lot of heavy sanding or cutting.

As soon as I save up the money I will be upgrading to a more
better quality air filtration system from Grizzly.

Thank you for looking and comments or questions are welcome!
David B.

-- dumpster diver delux

6 comments so far

View steliart's profile


2895 posts in 4030 days

#1 posted 03-13-2011 10:44 AM

cool & inexpensive

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions !!!

View Roger's profile


21055 posts in 4145 days

#2 posted 03-13-2011 05:18 PM

it works. I’ve got one hanging from the ceiling, and one at the lathe. just sweep em or blow em out when needed. they work. I had a few pieces of vinyl J-Channel layin around that I used to hold the filter/s. I think every little bit surely helps. Actually, this pic was right before I cleaned it.
Oh, I bought the box fans at Dollar Store for 10bux each

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed. [email protected]

View Doug's profile


1281 posts in 4102 days

#3 posted 03-13-2011 06:10 PM

Very cool. I need to make of these. I have the fan but I needed a way to make the box for it. I could be ultra cheap and just bungee chord a 20”x20” filter to it but I like the look of yours.

-- Doug

View NBeener's profile


4816 posts in 4515 days

#4 posted 03-13-2011 06:15 PM

I’ve seen LOTS of the home-brewed 20” shop fan + filter rigs (just like Doug describes, and like I use), but NEVER one that got boxed and framed the way that you did yours.

Clever. Elegant. Nice !

To your health :-)

-- -- Neil

View Woodwrecker's profile


4240 posts in 4917 days

#5 posted 03-13-2011 06:41 PM

Nice job. I like that frame.
I have one too and it suits me fine.

View Jon Edmonds's profile

Jon Edmonds

43 posts in 4283 days

#6 posted 03-17-2011 05:31 PM

Before you jump to that grizzly you might want to try upgrading the fiter to on this one. I use a similar setup and bought a $25 re-usable filter about a year ago. It works well enough that I can’t fine a meaningful performance difference in something that cost alot more and if the fan goes I’m only out another $15 bucks.


-- Jon In Sunny California

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