Keep in mind that many welding helmets support both auto darkening and non auto darkening lenses, especially the older, established brands. So if you have a helmet already that is comfy and broken in that you can’t bear to part with, you may be able to swap out the lens and retain your existing helmet. In some cases, though this may not be possible. When you are evaluating a new helmet or filter, look at the ease of adjustment. Is the shade adjustable without having to dismount your helmet? If it is, there will usually be an external knob on the side of the helmet, near the temple area