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Filtering weld smoke/fumes?

bigblock454

bigblock454

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Anybody ever tried to filter out the weld fumes vs exhausting outside? I live in Indiana and hate to just vent all of my nice warm shop air when it's cold outside. I was thinking of using some of these deep pleated 0.3 micron bag filters from McMaster and a large furnace squirrel cage fan.

https://www.mcmaster.com/22905k63

According to McMasters filter info 0.3 microns will filter "Most Smoke".
 
o.m.g . . . . you go over there and you will be m.i.a for days . . . .nice guys and tons of MEGA shop builds . . . .i limit my self over there or i would never get back to ck5 .
 
Same reason I don't visit avsforum.com. Rabbit hole after rabbit hole after oh look I just dropped a $1000 on a pair of speakers. True story.
 
Not sure if this product ever took off...

Years ago when I was at a machine shop in Englewood, CO, there was a welding supply company across the street. He was trying to develop a heat exchanger that would pull in cooler fresh air and remove unfiltered shop air from welding stations. You might Google around for something like that.
 
Well after lots of reading, looks like you can fairly easily filter out the particle dust and smoke particles, but you leave all the other nasty stuff in the air. I'm still going to build the filter as it will remove the grinding dust, which will help a bunch, then just have to exhaust the welding fumes. Most of my inside welding is TIG, so if I can filter out grinding/sawing/etc that will save a bunch of heat.
 
I have a 20" box fan with five 20"x 20" x 2" basic filters, same on the fancoil. The box fan runs 24/7 the fancoil only runs when the glycol is up to temp.

20191123_134819.jpg

20191125_054254.jpg
 
Just changed them within the last 24 hours, they get dark pretty quick. This is the filter I replaced. Tough call if it works, I know I'm not breathing the dust that's the filter.

20191125_061617.jpg
 
Dust is easy to filter. We use them all the time in wood shops. I have a supermax air filter very similar to the Jet 1000 listed here.
https://www.woodcraft.com/search?q=air+filtration&button=search

Their short coming is that they only filter the ambient air, what's already floating around.

The new thinking is to have filters closer to the source so you can capture particles before they get up to face level. The Powermatic PM 1250 use electrostatic filters and is hepa rated. It can be mounted on a wall, ceiling or placed on a work bench/ cart right next to you. Plus it is QUIET and only uses 0.3 amps on high.

You need charcoal to really filter out the fumes. The new Axiom Stratus is a very effective unit that pulls all dust and smoke down away from where you're working and filters it before it ever gets up to face level. It is available w/ a charcoal filter. We're about to set up a CNC room and will be getting one of these to handle the dust from routing and the smoke from lazing wood.
https://www.axiomstratus.com
 
bigblock454 said:
Anybody ever tried to filter out the weld fumes vs exhausting outside? I live in Indiana and hate to just vent all of my nice warm shop air when it's cold outside. I was thinking of using some of these deep pleated 0.3 micron bag filters from McMaster and a large furnace squirrel cage fan.

https://www.mcmaster.com/22905k63

According to McMasters filter info 0.3 microns will filter "Most Smoke".
Click to expand...

You're not really in the part of the country that uses them, but maybe you could find an old swamp cooler and convert it.
 
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