Aluminium welding is somewhat hazardous to my understanding. If I remember from talking with a metal smith in my family, it can give off some pretty noxious fum

Aluminium welding is somewhat hazardous to my understanding. If I remember from talking with a metal smith in my family, it can give off some pretty noxious fumes. Apparently it can even yield Arsenic and Florine fumes (CDC website mentioned those, among others). Again, if I recall correctly, something like a full-face P100 acid-gas mask is usually enough.