• nilloc@discuss.tchncs.de
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        2 months ago

        I wear a respirator while welding, but it’s only really a hobby for me so far. But now I’m curious, which filters actually catch manganese?

        I’m usually worried about accounting zinc (on galvanized steel), because it can make you ill for a couple days, unless you drink a glass of safety milk.

        • LordGimp@lemm.ee
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          2 months ago

          I know you said you’re just a hobbyist, but a positive air pressure respirator is just the way to go when you’re a welder. It’s basically an over the head setup that works like those old hazmat suits you’d see in movies. It’s got a fan or something blowing in slightly higher pressure air, so none of the air outside can get in as the air is always moving out due to the difference in pressure. What it means is that ALL particulates, gasses, and whatever else you don’t want to breathe have no way to get to you unless it somehow gets into whatever is supplying your air.

          They make fanny pack sized units with batteries that are mobile, which works for me as I’ve had to go down in ships and up on scissor lifts to do welding before. I believe they also make slightly bulkier stationary setups that are significantly cheaper but often require other equipment (eg. Specialized compressor) to function. The all in one setup i got is quite expensive (about $2k new) but I managed to find it for quite a bit cheaper used on ebay. I’m comfortable doing this as I’ve been a welder for 15 years and have experience with quite a few different PAPR systems and am confident in my ability to troubleshoot any problems. If you’re completely relying on something like this for safety without really knowing how it works, I’d recommend definitely getting something that comes with a warranty. The parts can be finicky, delicate, and expensive.

          • nilloc@discuss.tchncs.de
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            2 months ago

            I’d love a PAPR system, but I’m mostly just plug welding body panels on project cars once in a while. I spent a little extra on the welding machine (buy once cry once), but it’s still 1/2 the price of a PAPR.

            They look super nice for switching between welding and grinding though. If I was doing it more than a couple hours a week (if that) I’d start saving for one for sure.

    • grue@lemmy.world
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      2 months ago

      I have literally never seen a welding mask with either a built-in respirator or enough room in front of the mouth/nose to accommodate a separate one. Do such things even exist?

      • LordGimp@lemm.ee
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        2 months ago

        Are you serious? PAPR systems have been around forever. I’ve seen old setups that are fitted to use pressurized air from compressors. Just don’t forget to trap the line or you’re gonna get real oily and moist real fast.

        • grue@lemmy.world
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          2 months ago

          Okay, look, I admit it: I own a welder, but I’m not a welder. My experience shopping for welding masks is limited to places like Harbor Freight and Amazon.com, and the notion of searching for “welding respirator” or “welding PAPR” instead of “welding mask” never crossed my mind until reading this thread.

          • LordGimp@lemm.ee
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            2 months ago

            First tip: we call them “hoods”. As in “drop the hood and get to welding”

            A welding mask to me is one of those handheld jobbies my instructor used to use back in welding school. Think clipboard on a stick with a very dark piece of glass over a cutout in the middle.

            Old “welding hoods” are literally that. A big leather hood that goes over your whole head with a little fixture to hold the welding lens over your face like snow goggles. They still make this style today for real heavy welding applications