Air Filter / Exhaust Fan

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Project by Walnutz posted 01-21-2012 06:36 PM 4199 views 4 times favorited 6 comments Add to Favorites Watch

I put this together a while ago and it works so well, I thought I should share it.
I have a basement shop with not a lot of height so I really don’t have room to hang a filter from the ceiling. I built this unit up against one of the windows so when I want to use it as a filter only, I keep the window closed and the sliding doors open. If I’m finishing, I just open the window and close the sliding doors. It takes a 14X20X1 furnace filter. I have my table that I use for sanding very close to the filter and it is amazing how fast the filter gets dirty. My shop is pretty well isolated from the rest of the basement with insulated walls and ceiling and separate heat so the dust is kept in the shop. The only thing I may change would be to change the blower to a forward curve (squirrel cage) to cut down on the noise but when I’m sanding I have the muffs on anyway. I have a vent installed in the other end of the shop to let in fresh air through another window for finishing.

6 comments so far

View Bobsboxes's profile


1447 posts in 3435 days

#1 posted 01-21-2012 06:45 PM

Great idea, thanks for shareing. When you say the filter gets dirty fast, I also built something simular, that was when I started to concentrate some of my time to getting my dust collection in order.

-- Bob in Montana. Kindness is the Language the blind can see and deaf can hear. - Mark Twain

View a1Jim's profile


118065 posts in 4349 days

#2 posted 01-21-2012 06:54 PM

Thanks for the tip and sharing your great design,very good job.


View DIYaholic's profile


19918 posts in 3447 days

#3 posted 01-21-2012 08:17 PM

A few words of caution or concern!!!

1) Is the motor “Explosion Proof” rated? Finishing could prove “Hazardous To Your Health” & impair the “Structural Integrity” of your house!!!

2) A higher rated MERV filter would do a better (read healthier) job removing the fines.

I must say though, ingenious space saving design.

-- 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 clieb91's profile


3918 posts in 4706 days

#4 posted 01-21-2012 08:44 PM

Great idea! Thanks for sharing.


-- Chris L. "Don't Dream it, Be it."- (Purveyors of Portable Fun and Fidgets)

View NormG's profile


6506 posts in 3775 days

#5 posted 01-22-2012 02:59 AM

That could even be put directly in a wall, great design

-- Norman - I never never make a mistake, I just change the design.

View Gadgitron's profile


4 posts in 3089 days

#6 posted 01-22-2012 03:27 AM

Great! I live in vegas and I think with my swamp cooler running this will work great for me! good posting

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