Shop Air Filter / Box Fan

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Project by whope posted 08-03-2015 11:48 PM 1240 views 2 times favorited 5 comments Add to Favorites Watch

A number of LJ’ers have made one of these. Took about an hour total to make. The outlet box has a 60 minute timer which controls one of the outlets. The other is hot all the time. I used a long cord to plug the unit in.

Used a couple scraps of luan and an 8’ 1×2.

Still need to find a place to secure it out of the way. I might caulk the joint between the fan and the frame.

Thanks for looking.

Update (9/3/15): There needs to be a baffle around the fan blade itself to force air to come through the filter, otherwise it pulls dust in through the front (in areas not in front of the fan) and then blows it all over the shop.

-- Measure it with a micrometer, mark it with chalk, cut it with an axe.

5 comments so far

View Hawaiilad's profile


2884 posts in 2441 days

#1 posted 08-04-2015 03:34 AM

That’s great. Looks much better than the one by my scroll saw I threw together. It sure works good. Have to clean and change the filter allot.

-- Larry in Hawaii,

View woodsawdustmaker's profile


37 posts in 3045 days

#2 posted 08-04-2015 02:51 PM

A piece of screen wire in front of the filter will reduce the frequency of changing the filter. You can vacuum the wire with a shop vac.

-- Max - Birmingham, AL

View Desert_Woodworker's profile


352 posts in 635 days

#3 posted 08-04-2015 05:12 PM

American ingeniuty!

-- Desert_Woodworker

View Mean_Dean's profile


4939 posts in 2568 days

#4 posted 08-04-2015 11:37 PM

Looks like it will work very well!

-- Dean

View monster1971's profile


45 posts in 417 days

#5 posted 10-10-2015 10:45 PM

Whope, looks real nice. Much nicer than my fan filter Being held by strapping 2 bungee chords.

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