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Air Purifier

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Project by Wingstress posted 11-24-2009 05:46 AM 3971 views 18 times favorited 17 comments Add to Favorites Watch

I had wanted an air purifier for a while now, but didn’t want to spend the money. So, one day I was in Woodcraft and saw a really nice replacement filter for a Jet air purifier for about $50. So I grabbed it. Then I searched craig’s list and ebay for a squirrel cage blower, but couldn’t find one cheap enough (after shipping) and the right size. Then it dawned on me that I could use a dehumidifier fan. So I decided to take my 4 year old son to the dump to look for a fan. When I told my wife she just rolled her eyes at me. (I thought he would like the bulldozers). anyway, there were a ton of dehumidifiers so I grabbed my drill and ripped out a fan in about 5 minutes. (We hung around for another 20 watching the bulldozers crush stuff. Man to be a kid again…)

So I used some scape plywood to build a box around the expensive filter and threw in a cheap furnace filter in front of it. I had a timer switch already so I threw that in also. So there I was a nice weekend project done. So I went to go hang it and couldn’t believe how heavy it was. Oh well, I can tough it out. So I hung it with some $2 turnbuckles from lowes. So I’m done right? Wrong!!! It hung about 3 inches too low! It would have clocked me right between the eyes. Sitting there I thought to myself YOU IDIOT!!! How was I going to fix this. The floor beams are in the way. So I took down the assembly, flipped it upside down and threw it on my table saw with a dado blade sticking out the full height (I did remember to remove some screws prior to cutting). I cut two grooves 16 inches apart center-to-center. At that point it was so ugly, I decided to grab some grey paint and let my kids go to town on it.

Filter $50
Hardware $10
Fan – free (dump)
Realizing my design was way too big for the ceiling – free
Spending time with my kids in the shop and not caring about the results – Priceless

-- Tom, Simsbury, CT





17 comments so far

View ChunkyC's profile

ChunkyC

856 posts in 3764 days


#1 posted 11-24-2009 05:48 AM

Looks great! Thanks for posting. I just picked up a blower last week just for this.

cc

-- Chunk's Workshop pictures: http://spadfest.rcspads.com/thumbnails.php?album=135

View RetiredCoastie's profile

RetiredCoastie

999 posts in 3693 days


#2 posted 11-24-2009 06:05 AM

Nice air cleaner Tom! How well does it work? What micron is the filter bag rated at? I didn’t know the filter bags were that cheap or I would have incorporated one into my filter project.

Thanks for posting!

-- www.thepatriotwoodworker.com Proud Supporter of Homes For Our Troops

View GaryCN's profile

GaryCN

425 posts in 4445 days


#3 posted 11-24-2009 06:54 AM

Do you think an electric auto radiator fan would work with a AC adapter? Easy to find them at a junkyard.

-- Quando Omni Flunkus Moritati

View RetiredCoastie's profile

RetiredCoastie

999 posts in 3693 days


#4 posted 11-24-2009 07:24 AM

Get a blower out of a furnace, you’ll be glad you did. Most HVAC companies throw them out when they replace a furnace.

-- www.thepatriotwoodworker.com Proud Supporter of Homes For Our Troops

View kerflesss's profile

kerflesss

182 posts in 3878 days


#5 posted 11-24-2009 11:05 AM

Great job; kids are truly priceless!

View Ken90712's profile

Ken90712

17743 posts in 3699 days


#6 posted 11-24-2009 11:37 AM

I love it. Like the design around the rafters. I need to do that in mine shop as well, the ceilings are a little low. I once was moving my clamps around, I hit one of the florescent lights. BOOM & glass everywhere !!!!! To see me dive to the grd like I was back at the “line of death” in Libya being at shot at, Priceless!

Love the pics of spending time with the kids!!!

-- Ken, "Everyday above ground is a good day!"

View Billp's profile

Billp

804 posts in 4710 days


#7 posted 11-24-2009 03:39 PM

I just dropped the big bucks for performax air cleaner and haven’t even installed it yet. I think your’s is a whole lot cooler and now that I see yours I should have built my own. With that special paint job, mine around $400 and yours pricless.

-- Billp

View nuzzo's profile

nuzzo

64 posts in 3627 days


#8 posted 11-24-2009 03:52 PM

Nice job. I’m not there quite yet. Still have my 1HP Jet dust coolector sitting in the corner of my shop, not hooked up.
Looks like one of those storm chasing vehicles. : )

View Jimthecarver's profile

Jimthecarver

1124 posts in 4296 days


#9 posted 11-24-2009 04:06 PM

I used a blower from a furnace, they really do the job well. Retired Coastie/Mike D. Has it right they usually throw them away or have many used ones on hand and are happy to sell them at a very reduced rate or give it to you. Nice Idea…..now hmmmmmm. how to use the bag filter on mine?
Thanks for the post.

-- Can't never could do anything, to try is to advance.

View dbhost's profile

dbhost

5772 posts in 3742 days


#10 posted 11-24-2009 05:55 PM

Oh man I LOVE seeing stories of other folks making up for mistakes… Lord knows I make plenty in the shop!

-- Please like and subscribe to my YouTube Channel https://www.youtube.com/c/daves-workshop

View DannyBoy's profile

DannyBoy

521 posts in 4376 days


#11 posted 11-24-2009 06:25 PM

I like the fact that you have the bags. I need to work something like that out on mine.

~DB

-- He said wood...http://hickbyassociation.blogspot.com/

View a1Jim's profile

a1Jim

117722 posts in 4087 days


#12 posted 11-24-2009 06:31 PM

Fun story and good build,hope it works ok?

View longgone's profile

longgone

5688 posts in 3819 days


#13 posted 11-24-2009 10:26 PM

Great air filter. I have a store-bought one in my shop and would like to add a secend air filter. You can never have too little dust in the shop. Your pictures inspired me to build my next one.

View Willow's profile

Willow

18 posts in 3618 days


#14 posted 11-25-2009 03:31 AM

Bottom line – how does it work? I have been thinking of making mine with a duct blower (420 cfm). Anybody have any input on that?

View Wingstress's profile

Wingstress

339 posts in 4025 days


#15 posted 11-25-2009 05:44 AM

Hi everyone, thanks for the comments. The most common question is “does it work?” Well, I think so. It definitely moves air, you can feel it when you walk by, but as far as picking up loose dust I’m not sure. I was hoping to see some dust trapped in the filter, but I have only used it for about 4 hours and haven’t noticed anything. At first I thought it wasn’t working, but then I thought if I clog up a filter in 4 hours, I’ll be replacing them every other day. So the jury is still out on this one. I do know it certainly is moving air. Whether its picking all the dust out of the air, I’m not sure. For any of you who already own one, how long do the filters last?

-- Tom, Simsbury, CT

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