I either need a different welding helmet, or I need to stop breathing.

So I now have 100 amp worth of 240 VAC power down in the shed, and since the car is "out", I thought I'd try it out and weld-up the mulching deck on my JD. If any of you have an L series mower with a 42" deck, you may be familiar with this:
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(LOL! And if not:
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Anywhoooooo, I have a Lincoln ProMig 180 that came with an auto-darkening helmet as part of the package, and I forgot how much I hate that damn helmet! With almost every breathe I take (now I have Sting in my head), the damn thing fogs up inside, and I have to lift it up and let it clear, and then hold my breath while trying to make a pass.

So, are any of you familiar with with this, and/or can make a suggestion as to what to do/what to buy (other than holding my breath)? I don't know if it's me, or the stupid helmet.

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Thanks!

Jim