pogopins

this does sound like a neat solution but my experience with the VAG squirters has not been good

there are powered welding helmets that give you a nice clean air supply; I believe the air supply part is generally called "PAPR"? They're not cheap but they're probably cheaper than whatever the argon etc eventually does to you I've heard that they also help with fogging if you're a glasses-wearer If you watch Cutting Edge Engineering on YouTube (recommended!) you'll occasionally see that guy using one Great to see some more progress here 🙂 edit: found one.