Updated September 24, 2026. Choose a welding filter shade for the process and operating current—not just for a comfortable-looking view. The helmet must support the required shade and application. A clear cover lens, an optical-clarity claim, or a light-state shade is not a substitute for the correct welding filter.
Start with the applicable minimum, not a universal shade range
OSHA 1910.133(a)(5) lists minimum protective shades by operation and current, with other conditions where specified. The examples below show why the same current does not always call for the same minimum shade.
| Operation and example current | Minimum protective shade |
|---|---|
| MIG/GMAW or flux-cored/FCAW at 100 A | 10 |
| TIG/GTAW at 100 A | 8 |
| MIG/GMAW or flux-cored/FCAW at 200 A | 10 |
| TIG/GTAW at 200 A | 10 |
These are selected examples, not a complete shade chart or a recommendation to use the minimum in every situation. Consult the full table, helmet instructions, and workplace requirements for the actual job. Start darker and improve visibility without dropping below the applicable minimum. Do not extrapolate the examples to gas cutting, plasma cutting, gouging, or other operations.
Separate shade from sensitivity and delay
For a conventional variable-shade auto-darkening filter, set the appropriate welding shade before use. Sensitivity changes how readily the filter responds to light; delay affects its return from the dark state. Neither control changes the protective shade the job requires. Do not assume an automatic filter selects the correct shade simply by detecting the arc.
A passive filter remains dark. A fixed-shade auto-darkening filter switches between light and a designated dark shade, while a variable-shade model provides a selectable range. Fixed shade therefore does not necessarily mean passive. Review the exact helmet instructions and our helmet lens-type and selection guide when comparing designs.
Check the operating mode before each change of task
Do not weld in Grind mode. After grinding, return the helmet to the appropriate welding mode and shade. Check that any cut mode supports the operation being performed rather than treating it as a general low-shade welding mode.
Follow the manufacturer's pre-use test and inspection procedure. Keep the sensors unobstructed and inspect the filter, cover lenses, and headgear. Stop using an auto-darkening filter that behaves unpredictably; turning the shade darker or increasing sensitivity is not a repair for a faulty filter.
Improve visibility without sacrificing protection
Check for dirty or scratched cover lenses, poor headgear position, and unsuitable work lighting before reducing the shade. Use the manufacturer's cleaning method and approved replacement parts. Do not remove a required protective cover to obtain a clearer view.
A clear cover lens protects the filter assembly; it is not itself a welding shade filter. Inside covers, outside covers, grinding shields, and auto-darkening filters can be different parts. Order by the helmet model, filter generation, and exact manufacturer part number—not dimensions alone. Our cover-lens maintenance guide addresses cleaning and replacement.
Keep the rest of the eye-protection setup in place
Use appropriate safety glasses under the welding helmet and ensure that prescription eyewear and other protective equipment fit together correctly. A helmet's filter shade does not address every impact, fume, or clothing hazard. See OSHA's PPE guidance for primary eye protection used with welding helmets.
When shopping, compare the manufacturer's supported shade range and operating modes against your process and current. Then confirm fit and replacement parts using ArcWeld's welding-helmet collection. A helmet that cannot provide the required protection is not made suitable by choosing its darkest available setting.