Hey Guest!
I worked in a large fabrication shop. When the welders worked in confined areas they wore hoods that had fresh air piped in. Since I ran the machine shop I don't know any details of the system,
I would think that a fan or vacuum unit that created any type of breeze would affect the shielding gas. Piped in air to a helmet would solve the problem without messing with the shielding gas.Thanks..I think I am thinking of a portable unit..smallish..I don't have a great deal of room in my shop/garage. Several manufacturers make models that would suit me. Dayton makes one..single speed fan..would it suck shielding gas away from the puddle?..I don't know.
I would think that a fan or vacuum unit that created any type of breeze would affect the shielding gas. Piped in air to a helmet would solve the problem without messing with the shielding gas.
Rut
https://www.turbineproducts.com/bre...r-respirator-w-auto-darkening-welding-helmet/