ADF: ADF is an abbreviation for Auto-Darkening Filter. This is a welding lens with ability to change from a light state to a dark state instantly upon striking a welding arc. Unlike a passive welding plate, the user is not required to lift the helmet in order to view the weld.

ANSI: ANSI is an abbreviation for The American National Standards Institute. The lenses are marked in accordance with the specific standard tested. In the case of welding filters, they are marked AR W Z87, where AR is our manufacturer’s mark, W indicates welding lens, and Z87 is the name of the standard for eye protectors. Note: depending on which year the lens was tested, the W may or may not be present.
ASIC: Application Specific Integrated Circuit. Reduces the number components on the board, allows for digital performance.

CE: CE is an abbreviation for Conformité Européenne, meaning "European Conformity.” Product marked CE has been tested and approved to European safety standards.

CSA: CSA is an abbreviation for the Canadian Standards Association. Product marked CAN/CSA has been tested to Canadian safety standards for eye protection.

Dark spots: The Liquid Crystal Diopters have moved out of position. The glass may have a thin hair-line crack, allowing air between the layers of glass, thus moving the crystals out of position.

Flash Burn: Also known as Welder’s Flash or Arc Eye. Direct eye exposure to intense ultraviolet (UV) light. Seek medical assistance if your eyes are exposed to a welding arc without any UV protection.

Flickering: The welding lens quickly switches from dark to light state repeatedly for any length of time.

Grind Mode: Welding lens mode that keeps the lens in the light state. Most common applications are grinding and cutting.

HEPA: HEPA is an abbreviation for High-Efficiency Particulate Air. It is a filter that removes 99.97% of 0.3 µm particles.

iTIG: Welding lens mode for TIG welding that allows the welder to set a range for up-slope and down-slope shade control.

NIOSH: NIOSH is an abbreviation for the National Institute of Occupational Safety and Health. It is a division within the Centers for Disease Control (CDC) that researches and makes recommendations for safe and healthful working conditions. Under the Occupational Safety and Health Act, NIOSH tests and approves personal protection equipment (PPE).

OSHA: OSHA is an abbreviation for the Occupational Safety and Health Administration. It is a division of the United States Department of Labor that regulates and enforces safety and health standards for private and public sector workers. See also, NIOSH.

PAPR: PAPR is an abbreviation for powered air purifying respirator. A PAPR is a specific type of PPE to filter air of particulate matter that required approval from NIOSH.

PPE: PPE is an abbreviation for personal protection equipment. PPE pertains to any protective helmet, goggle, clothing, or other equipment designed to protect the wearer from injury. PPE forms a barrier between the wearer and occupational hazards including but not limited to, physical, electrical, heat, chemicals, biohazards, and airborne particulate matter.

Sensitivity: Welding lens feature that allows the user to set the sensitivity of the sensors. High Sensitivity is required for low light or low amperage applications; Low Sensitivity is ideal for intense light or high amperage applications. Sensitivity may be turned off with some welding lens models, see Grind Mode.

Spatter: Small airborne particles of viscous metal from the welding arc.

Tig Mode: Welding lens mode that increases the sensitivity of the lens for welding at amperages as low as 5 Amps.

UV/IR Protection: ArcOne welding lenses have static UV/IR protection, meaning the protection is there regardless of the shade the ADF UV/IR protection meets or exceeds the ANSI standards of the darkest shade available for that particular model.