Shop/Football filter

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Project by drewpy posted 09-15-2015 09:27 PM 1947 views 7 times favorited 6 comments Add to Favorites Watch

I’ve seen posts about people using box fans with a filter to help clean air in spaces/workshops all the time. Here is my version and was somewhat based off one woodshaver posted. I will see how it works. I’m not a analyst so I don’t know what CFM or whatever it might do. I can tell you that if you have have smokers over to watch Sunday football it really helps the garage from becoming a smoke box when it’s cold and the garage door is closed. You can see the smoking lounge in the background. haha

It’s simply 1 board of pine lumber from HD that cost $7.33, a box fan that I had ($20 probably), and a furnace filter with a HD rating of 9 ($15). Who knows what filter I’ll continue to use.

I just used double rabbet joints, put a filler strip for the filter to sit on and hold the fan in place, and made a slot for the lighting deflector that I had sitting around for behind the filter – to make it more pleasing to the eye!

The finish is just 1 part shellac mixed with 2 parts denatured alcohol for a sealer. I then used some Shewrin-Williams wiping stain I had leftover from the rocking chair refinish I posted last year. I found a can of spray semi-gloss poly on the shelf and sprayed on three coats for the final finish.

I might put a door on the filter opening and I need to do something about the cord. It’s hooked up to my outdoor Christmas light timer for now. The top is screwed on so that everything can be removed easily.

Think that’s it. – Drew

-- Drew -- "The greatest wealth is health".

6 comments so far

View Siegs's profile


50 posts in 1295 days

#1 posted 09-15-2015 10:00 PM

Hey, whatever it takes to have a successful football Sunday!!!

View DocSavage45's profile


8735 posts in 3084 days

#2 posted 09-16-2015 12:29 AM

I’m thinking great for general dust, but unless your exhausting to the out side you’re going to need a carbon filter for tobacco smoke. Nice product.

-- Cau Haus Designs, Thomas J. Tieffenbacher

View drewpy's profile


821 posts in 1599 days

#3 posted 09-16-2015 12:58 AM

Thanks for the info doc. The people out in the garage Sunday said it helped but who knows. I ordered a carbon filter and it should be here in time for this Sunday. I can use the carbon on Sundays and normal filters for when I’m making dust out there.

-- Drew -- "The greatest wealth is health".

View kiefer's profile


5623 posts in 2909 days

#4 posted 09-16-2015 02:21 AM

Whatever works to keep the dust down .
Let me know how it works just cut up some pine that is a nice smell .


-- Kiefer

View Burb's profile


110 posts in 2612 days

#5 posted 09-16-2015 02:56 PM

One of the nicer examples of this project I’ve seen.

-- I aspire to be a novice woodworker...

View Ebro's profile


158 posts in 1977 days

#6 posted 09-16-2015 08:12 PM

Yes! This is exactly what I’ve been thinking about to get some extra dust protection. Great idea! Thanks for the inspiration.

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