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Thread: Respirators

  1. #1
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    Default Respirators

    For brazing I've been using a basic 3M cartridge version that I picked up at Home Depot for a while, but not sure it's adequate.

    Is this in fact good enough? If not, what should I be using?

    Thanks.

    Brandon
    Brandon Poser
    BAHL Cycle Works
    brandon@bahlcycle.com
    www.bahlcycle.com
    Instagram: @bahlcycle

  2. #2
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    Default Re: Respirators

    The cartridges from 3M vary significantly. Including a model number would help.

    I use a P100 2097 from 3M as was suggested by Kris from 44 some years ago/.
    elysian
    Tom Tolhurst

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    Default Re: Respirators

    Let me follow up with a bit more:

    If I were brazing a lot I'd probably review the model and make sure I was using the best option. But I only use my OA setup for braze ons, never for fillets/lugs, I dont do this for a living and my space has a permanent cross breeze (PITA for TIG).

    https://multimedia.3m.com/mws/media/...l-bulletin.pdf
    elysian
    Tom Tolhurst

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    Default Re: Respirators

    Quote Originally Posted by BigPoser View Post
    For brazing I've been using a basic 3M cartridge version that I picked up at Home Depot for a while, but not sure it's adequate.

    Is this in fact good enough? If not, what should I be using?

    Thanks.

    Brandon

    How much actual brazing are you doing?

    I’m more into high ceilings here, making 5-6 frames a month these days.

    Have never worn a mask.

  5. #5
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    Default Re: Respirators

    Quote Originally Posted by e-RICHIE View Post
    How much actual brazing are you doing?

    Iím more into high ceilings here, making 5-6 frames a month these days.

    Have never worn a mask.
    Thanks Richard. Good to know. I'm not doing that many, but I use OA for everything. Also good knowing your brain hasn't turned to mush either. Must not be as bad I had thought.
    Brandon Poser
    BAHL Cycle Works
    brandon@bahlcycle.com
    www.bahlcycle.com
    Instagram: @bahlcycle

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    Default Re: Respirators

    IME, limited as it is, the bigger issue is flux head and not the OA combustion. With some common sense about not placing your head over the flume coming off the work you'll be fine. Andy (who used Cadmium doped fillers a long time ago w/o protection, followed this advice and still thinks mostly straight)
    Andy Stewart
    10%

  7. #7
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    Default Re: Respirators

    So, OA is bad for you somehow?
    Granted, I don't braze every day, but I can't imagine that it is any trouble now and then.
    If I did braze every day, I'd look it up.
    I'm pretty sure that my time at the grinding wheel at Pittsburgh Forgings caused me more trouble than any OA fumes, although I have not noticed any trouble from that yet.
    I'm sure that the grinding wheel scrum that I inhaled was not good for me.
    I used to use the EasyFlow 45 (with cadmium) like Andrew, without any kind of protection, and all seems OK many years later.
    Like Andrew says, keep your nose out of the cloud.
    And look into it more if you're going to be doing it every day.
    Mark Walberg
    Building bike frames for fun since 1973.

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