DIY Fume Extractor 

Today I got a quote from SAS(fume extractor company) for one of their lower end portable fume extractors and they want to charge me a hefty ~ $1700. I saw that and I went "holy crap! No way in hell I'm buying that" And then I saw this awesome video. I will probably make a hole in my wall and then put the extractor outside to get less noise. Thanks for the video!

Glad I found this video. I was about to build one with an old squirrel cage fan from a furnace. I’m sure it would work exceedingly well, but it’s heavy and much larger than that horrible freight fan. I’m going your route for simplicity and space savings. Plus I can use this squirrel cage to blow the heat out of my shop since August on the gulf coast is like living on the sun.

thank you. its all about safety, and keeping your money in your pocket.

People can call it a DIY project or not. However, this video gave me an idea I did not have or confirm what you may have had already in mind. If anyone has something better to post, post it. I like to see it. I like the video and am thankful for the time taken to educate me.

Hey thanks.. just what I was looking for after catching a shit ton of flux fumes today...

Well put sir. Thank you

this is awesome thank you!

Thank you for the video

that's going to be handy 4 sure!

cool info, thanks :)

I'm going to do this for me cigar lounge, but plume it into my attic!

I did this but I put the big fan against the window and used the tube to move around

I was thinking to buy the fan from HF but it probably suck my socks of my feet when welding; I ordered a blower from ebay which pulls 400 qfm. With reduction to 4" duct it should increase the air velocity at the intake and work well. Thanks for posting

Great idea! Hope you brought your 20% off coupon with you!

Don't forget to ground both ends of the aluminum duct, static electricity could be a problem?

Thank you for the video. I’m wondering if this would work with spray paint, with filters? Any thoughts?

I wonder how necessary a fume extractor would be for MIG welding indoors in a confined / sealed garage that is ~20ft x 20ft x 12ft tall. It's winter right now and I want to weld in my closed garage and keep it closed for several hours at a time. Being that it's cold out (below 40F) I also have a propane heater going to get the room above 60 degrees. Burning propane produces CO (Carbon Monoxide) which is of course very dangerous in high amounts. I know C25 shield gas (25% C02 / 75% Argon) is not flammable but it does displace oxygen too and at some point if enough exists it can cause asphyxiation just as CO does. In fact the less oxygen there is available to burn, the more CO is produced by a propane heater. CO2 is heavier than CO and I don't know if standard air sits somewhat in the middle (standard air is actually ~78% nitrogen / 21% oxygen). I was thinking of buying an 02 (oxygen) meter / sensor to stay aware of what the oxygen levels are and then open a door as necessary (if I haven't already passed out lol). Regardless, the goal is to keep all of my hot air inside as much as possible because having to re-heating a room every hour or less with propane will quickly get expensive. And If I use something like a fume extractor while welding it's obviously going to suck my hot air outside along with any fumes or smoke. I'd also guess that unless the extractor is directly over the weld, it may not grab all of the C25 gas either. In any case, the more there is C25 in the air will reduce oxygen content which in turn raises the CO content from the heater.

Awesome - you are a life saver (literally) and a money saver (compared to a pre-built solution for $500)! One question, where did you find 25' of 10" diameter flexible duct that cheap? The Harbor Freight store charges $79.99 for the fan. If you spent less than $100, that means you found duct work for less than $20? Please . . . do tell - thanks.

Dónde puedo comprarlo

Do u think if I reduced to 6” it world still work fine?

I know this is an old video, but from your experience, do you find that it has any effect on blowing away your mig gas when welding?

Nice ;-p

It sounds a little loud. I can't utilize it for that. BTW, I subbed and liked it.

Isn’t that a plastic duct though? If so, spatter will make quick work of it

I have a 6" 350 cfm fan that i reduced down to 3 " but it doesn't seem too powerful outside 2 feet. Should i keep the duct work 6" . I just thought reducing it would create more suck. ( its for a 20x20 foot smoking room) thanks!

Where is your make-up-air coming from, if you exhaust 500cfm, you must bring-in 500cfm. If you don't, the fan will suck the heat right out of your house. summer time no problem, but winter is another story.

why can't talk during recording

is it DIY or BIY

Bought this fan about an hour ago. Vent hose ordered last night. Brilliant idea, thanks!

If you place the fan at the end(near the window) you can reduce the noise level next to your workplace. I have seen workshops plumb in PVC for this exact purpose(dust and fume extraction). Always best to put some sort of spark arresting device at the suction end, so you help to minimize the chances of a fire starting.

This is great, and I'm definitely going to take advantage of this idea! Thanks for posting!

Perfect for when I use my everlast welder indoors.

I've got to make myself one of those. I stick weld with my everlast welder indoors sometimes and the smoke can get pretty thick.

Pretty awesome man! Great for soldering and welding and sanding and did I mention painting! 👊🏻

Great. Thanks man

I dig the idea!👍🏻 Jman👀

ITS GREAT

I am looking for a stronger housing to this utility blower. Can someone help??

great video!!!

man i'd like to setup something similar for car fumes.. as I'd like to be able to park in reverse in my garage. and use the garage door. Wonder if this would work. I'd have to sent the exhaust from the back to front of garage.. would this be strong enough for a 16' length from front to back?

Do you open another window on the opposite side of room to get makeup air? I thought these types of vent systems require makeup air.

Need something to vent Fumes from Car Paint, base/2k clear. I saw this blower, but I am concerned that its not explosion proof when trying to extract fumes?

Hello. I was just wondering what you do with the fumes afterwards. Do you store them somewhere?

i was stick welding in the basement with a box fan going..whew that fucked me up good. derp.

Would this work for spray paint fumes?

Hello there! I need advice! I am working with Resin/Epoxy and I am an artist. I just put a 20"X20" fan on my window facing outside to suck the smell out. Now people (other artists) are telling me my fan needs to be ''for fumes'' to avoid a fire. I ask myself how bad are the fumes that resin and some paints are creating to be this bad? My fan is from a normal hardware store. Any guidance regarding this will help!

Cat meauing

you stold my idea before i thaught it

The lack of dialog and hand gestures remind me of Groucho Marx :)