The exhaust of a shop vac, with the motor/filter section out of the body, routed to a modified regular welding helmet will substantially reduce any fume inhalation by the wearer. I wouldn't recommend this for a professional/heavy duty welder, but for the occasional hobbyist, like myself, this should be OK. Of course, the air inlet should be in an area with uncontaminated air.
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Mike
This is my thought as well, use a small, perhaps even 12v car vac? And they let people play rugby and allow boxing, skydiving, mountaineering and goodness knows what else that is blatantly dangerous. Just little people sitting in small offices trying to warrant their existence.
Still not what i consider cheap but a lot cheaper than the Miller unit.
https://www.wish.com/search/gas%20ma...&source=search
or search on Wish for....Fashion Full Face Gas Mask Electric Constant Flow Supplied Air Fed Respirator System
$151 without any discounts. Should be fairly easy to modify for use on a welding helmet.
I've used a ventilated helmet before, they're worth there weight in gold in the summertime. I do a lot of fine TIG welding and would love to have one of my own. I'll be following this tread.
Last edited by 69G T O; Apr 23, 2019 at 04:32 AM.
I've seen a lot of pipeline welders get their mask right down a few inched from where they were welding and the smoke haze would be engulfing them. I'd say dude if you are having a hard time seeing the bead get a cheater magnifying lenz for your helmet and get your head out of the cloud you will live longer
Never try to tell me it can't be done
When I have to paint I use KBS products
Saltfever (Apr 24, 2019)
This is where I started
Fresh air breathing system.pdf
Face mask filter selection.pdf
Breather-hood.stl
Breather-Taper.stl
Breather-Tophat.stl
fan interface.stl
Mask interface.stl
I liked the funky breather system for $115, I wonder how long the motor would last, wasn't a great fan of the filter being at the front but i guess it wouldn't be too much hassle to frig the thing.
For reference the 12v hairdryer is crap. farting into a vacuum tube would be more beneficial.
Got to keep trying for a tool of the week T shirt, Problem is mine will have JASON on it (a tool)
Last edited by MeJasonT; May 2, 2019 at 10:34 AM.
Citizen of the "New democratic" Republic of Britain, liberated from the EuroNation
Hans Pearson (Apr 26, 2019)
From 69GTO's link, i have found the fan - its 12v and used to cool PC's. Guess what i've bought the fan to play with. I'm still thinking an old cordless drill for the power pack and charger, not using the motor as it will kill the battery in 30 mins of welding. My other attachments should still work with it so lets see how it goes.
Toumas, thanks for your input and suggestions. 3M is my weapon of choice, i have a twin filter face mask already so the plan would be to make the air breather system interchangeable between the 3M mask and the welding mask and use the 3m filters for our fans intake, how does that sound. Already have a 3D model of the filter socket so no need to reinvent the wheel.
Do you have issues with the compressed air systems filters if you take them out of the system when its not in use and keep them in ambient surroundings (eg. an office) to dry naturally and not sit in stale air which obviously causes major health issues.
Last edited by MeJasonT; Apr 30, 2019 at 05:32 AM.
Citizen of the "New democratic" Republic of Britain, liberated from the EuroNation
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