kooldino
Well-known member
I weld a lot of stainless steel, and I've been told that they make special welding respirators that can fit under my welding mask.
Does anyone know anything about these?
Does anyone know anything about these?
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Welding Respirator
- Thread starter kooldino
- Start date
jeepnut24
Well-known member
I picked up a 3M welding mask during the last trip for shielding gas. I use it mainly for welding on my car which is galvanized. After doing some research, I won't weld without one any more. Zinc poisoning doesn't sound like much fun.
I use the one in the first post in this thread...
http://www.hotrodders.com/forum/ple...ator-158033.html?highlight=welding+respirator
I use the one in the first post in this thread...
http://www.hotrodders.com/forum/ple...ator-158033.html?highlight=welding+respirator
Last edited:
I picked up a 3M welding mask during the last trip for shielding gas. I use it mainly for welding on my car which is galvanized. After doing some research, I won't weld without one any more. Zinc poisoning doesn't sound like much fun.
I use the one in the first post in this thread...
http://www.hotrodders.com/forum/ple...ator-158033.html?highlight=welding+respirator
Thanks a bunch. Do you get them at your local ACE or did you find them online?
Pretty much any half face respirator will fit under a welding hood, the trick is finding filters. I use a North 7700 with P-100 pancake filters, which are good for most welding fumes including galvanized and stainless.
The "gas mask" style respirators won't fit under my mask.
jeepnut24
Well-known member
Thanks a bunch. Do you get them at your local ACE or did you find them online?
At my gas/welding supplier... but they are a bit cheaper online.
Merkava_4
Banned
North 770030 with North 75FFP100NL filters.
Add S, M, or L to the end of 770030 for the size, i.e., 770030L for large.
Add S, M, or L to the end of 770030 for the size, i.e., 770030L for large.
At my gas/welding supplier... but they are a bit cheaper online.
These guys?
http://www.amazon.com/dp/B0025UHONE/?tag=atomicindus08-20
TheGrooveking
Well-known member
I bought mine at McMaster Carr.
TheGrooveking
TheGrooveking
North 770030 with North 75FFP100NL filters.
Add S, M, or L to the end of 770030 for the size, i.e., 770030L for large.
http://www.drillspot.com/products/66041/North_770030M_Dual_Cartridge_Half_Mask_Respirator
Have you used this under a full face welding mask before?
Are they more effective than the 3M ones?
Merkava_4
Banned
I have both the North and the 3M. I like the North better because it's 100% silicone. The P100 filters are the same between North and 3M. The P100NL are supposed to give you a little more protection from fumes. I just use the regular P100 filters myself, but only if I'm running NR232 because of the slag dust being so nasty.
http://www.drillspot.com/products/66041/North_770030M_Dual_Cartridge_Half_Mask_Respirator
Have you used this under a full face welding mask before?
Are they more effective than the 3M ones?
That is the north 7700 like I wear. It fits fine under a welding hood, provided you use pancake style filters, I've worn it under my miller elite, my 3m speedglass, and a standard Jackson fibre-metal hood.
Effectiveness is the same across brands, *provided the respirator fits correctly*. Spend the $100 to get fit tested, both by vacuum and bitter fumes to make sure it seals correctly, and make sure you are clean shaven when wearing the respirator so a proper seal is formed, I keep a razor in my toolbox just for days I forget to shave.
They are your lungs and you care enough to ask about protecting them, you might as well make sure the protection you pay for actually works.
speed bump
Well-known member
I have a 3m at work and use it roughly 3-8 hours a shift for which it works great. For welding the pink 3m P100 filters are rated for it. I would suggest going to your local fire and safety store and seeing what they have. Chances are good that they sell for as cheap as you will find online and they can usually fit you and point you in the right direction for gear.
I have both the North and the 3M. I like the North better because it's 100% silicone. The P100 filters are the same between North and 3M. The P100NL are supposed to give you a little more protection from fumes. I just use the regular P100 filters myself, but only if I'm running NR232 because of the slag dust being so nasty.
Does one or the other tend to fog up the inside of your face glass while you're wearing it?
That is the north 7700 like I wear. It fits fine under a welding hood, provided you use pancake style filters, I've worn it under my miller elite, my 3m speedglass, and a standard Jackson fibre-metal hood.
Excellent, thanks.
Effectiveness is the same across brands, *provided the respirator fits correctly*. Spend the $100 to get fit tested, both by vacuum and bitter fumes to make sure it seals correctly, and make sure you are clean shaven when wearing the respirator so a proper seal is formed, I keep a razor in my toolbox just for days I forget to shave.
Wow, you don't mess around.
Are you a full time welder?
Where could I get fit tested?
jeepnut24
Well-known member
Does one or the other tend to fog up the inside of your face glass while you're wearing it?
Nope, they have a proper vent. I get mine locally to support them.
Excellent, thanks.
Wow, you don't mess around.
Are you a full time welder?
Where could I get fit tested?
No, not a full time welder but we do a ton of fabrication at our shop. Kinda comes with the heavy equipment side of things. As far as getting fit tested, look in the phonebook for fire and safety supply companies and start calling around, most good places will have the stuff to fit test you.
Merkava_4
Banned
Does one or the other tend to fog up the inside of your face glass while you're wearing it?
From my experience, the inside of the lens doesn't fog up, but my safety glasses would fog up if I didn't have them treated correctly.
Mr_fixit
Well-known member
those little things are rated for welding.. I find that hard to believe. A half face respirator with 2 cartridges, maybe.
speed bump
Well-known member
those little things are rated for welding.. I find that hard to believe. A half face respirator with 2 cartridges, maybe.
I'm pretty sure everyone here is talking about half mask respirators. I know I am talking about the 3M 6300 with the pink P100 pads which are rated for welding fumes.
Merk if your glasses are getting fogged up then you need to tighten down the top straps or go one size bigger on the respirator.
scottguehne
Well-known member
- Joined
- Nov 4, 2008
- Messages
- 82
I have a pretty standard 3m half face respirator that I also use for painting. I wear it under a Hobart Hood. It is just a tad tight, but it does fit. I have to spread the helmet just a bit to get it to fit over the outer filters initially, but once past that tight point, the respirator fits decently inside, and no fogging. I don't know how good the protection is against galvanized, which is what led to me stuffing the thing under my helmet, but I figure with an outer filter acting more as a particulate filter, and then the activated charcoal on the inner filter, I'm certainly better off than without any kind of respirator at all. I'm sure a fresh air supply would be best, but I think the respirator I have does justice.
You are right, a dustmask style filter like the 3M N95 in the hotrod link is good for filtering out grinding dust, and occasional fumes. A NIOSH rating of N95 is only good for 95% of particulates of .3 microns or larger, and is useless for fumes and vapors.those little things are rated for welding.. I find that hard to believe. A half face respirator with 2 cartridges, maybe.
If you are welding galvanized, stainless, or cad plated metals, you need a P100 rated filter which as far as I know is only available in a half face or full face respirator. The P rating is important because it adds the ability to resist oils that break down or clog standard filters, and some vapors. The 100 part of the filter means it filters out 99.97% of particulates .3 microns or larger, such as the zinc oxide that is formed when welding galvanized materials.
Really, some protection is better than none, but it's still a good idea to get fit tested to make sure the respirator actually fits properly (and they'll show you how to check for proper sealing, and under/overtightening). I'd rather use an N95 filter in a respirator that fits properly than a P100 in a respirator that doesn't fit well. A good supply store will carry multiple brands such as 3M and North because different brands can fit faces differently.
Merk if your glasses are getting fogged up then you need to tighten down the top straps or go one size bigger on the respirator.
He could also be overtightening the straps, leading to a leak. Overtightening is pretty common among first time respirator users.
You actually don't need the charcoal filter, because the zinc is not an organic vapor. Save a couple bucks and buy a bunch of P100 filters that get replaced often, instead of one more expensive combo filter that doesn't get changed often enough. Also, the activated charcoal is only useful for a day or two at most, unless placed in a sealed bag between uses.scottguehne said:I don't know how good the protection is against galvanized, which is what led to me stuffing the thing under my helmet, but I figure with an outer filter acting more as a particulate filter, and then the activated charcoal on the inner filter, I'm certainly better off than without any kind of respirator at all.
Last edited:
Professur
Well-known member
Yep, that's the trick. Positive air pressure to the face. ***** when the batteries fail, but that's just a question of pulling up the big boy pants and making sure you always have spares.