How Auto Darkening Welding Helmet works?

How Auto Darkening Welding Helmet works?

How Auto Darkening Welding Helmet works?

If you are a welder, then you must worry about your safety a lot. And you should, since welding subjects you to several kind of dangers that can cause different ailments in your body.

There are different kinds of welding applications such as MMA, Metal Inert Gas (MIT), Tungsten Inert Gas (TIG) and Plasma. Each one of these applications uses highly intense ultraviolet and infrared rays for their intended purposes. If human eyes or skin are subjected to these harmful rays then it will cause a lot of health troubles, since this can result in cornea infections, arc eye as well as other skin and eye infections.

Check: ArcOne X81VX-1555 Vision Welding Helmet

Why do you need welding helmets?

To put it simply, a welding helmet is a must have item for a welder. These helmets provide protection against all these harmful rays and assist you during your work processes.

Need for Improvement

Initially, welding glasses and leather helmets were used for this purpose but now manufacturers have joined forces with technology to introduce new, innovative and improved welding helmets. The previous safety gear is no longer considered to the best protective gear for welders. Helmet manufacturers saw an opportunity for improvement and they took it.

New & Improved Welding Helmets

Now, we have different series of new & technologically advanced welding helmets available from different manufacturers. These helmets are solar powered, easy to adjust, equip with exhaust vents and Auto Darkening Filters (ADF). Each of these improvements helps welders one way or another, but here we will elaborate more on Auto Darkening Welding Helmets and the filters used in it.

3M Speedglas Welding Helmet 9100 with Extra-Large Size Auto-Darkening Filter 9100XX- Shades 5, 8-13, Model 06-0100-30SW
  • Auto darkening filter (ADF) transitions from light to dark shade in approximately .1 milliseconds after welding arc is detected
  • Helmet helps provide protection from ultraviolet (UV) and infrared (IR) radiation
  • Optical quality gives worker a precise view of the work area
  • Ergonomically designed head suspension offers wearing comfort
  • Side windows with dark shade 5 filters increase peripheral field of view

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What are Auto Darkening Welding Helmets?

Just like its name suggest, Auto Darkening Welding Helmets use Auto Darkening Filters apart from several other improved protective features.

What are Auto Darkening Filters?

Using these filters mean that once powered on, your viewing widow will determine the welding amperage then adjust the shade to provide you maximum protection.  These filters are at the forefront of the viewing window and are able to deflect harmful rays with the help of sensors and shade.

How does it work?

Most Auto Darkening Welding Helmets aim to provide a broad view of whatever you are doing without obstructing your visibility in any sense.

The use of Auto Darkening Filters in welding helmets is also a continuation of that thought. These welding helmets are provided with Auto Darkening Filters along with arc sensors and other similar sensors to measure the welding amperage. Once the sensors have decided which shade is suitable then the shade changes within milliseconds. This is all fully automated as once the sensors recognize the amperage the automatic part of the product takes over.

Check: Miller Digital Elite Auto-Darkening Welding Helmet

If a welding helmet is equipped with Auto Darkening Filters then chances are it has a shade range of 5,7,8,9 or 13. Similarly, different sensors are added in the welding helmet to work along the Auto Darkening Filters. Each of these sensors recognizes a particular kind of arc and amperage. For example, if you are using the torch for grinding then any one of the sensors will immediately recognize its arc. The shade of your viewing window will be changed according to that. This all must seem like a complicated process that will probably take few minutes to work but in reality, it is not so difficult.

Auto Darkening Filters change the shade of the viewing plate within milliseconds. In most cases, it takes around 0.1 seconds. Once you are done with your work, it will take 40-300 milliseconds for it to return to light mode again. To put simply, Auto Darkening Filters work with special sensors to detect the amperage of the welding and then use automatic system to change shade.

There might be a concern regarding the workings of Auto Darkening Filter about how it will be able to differ welding arcs from sunlight and fluorescent lights. There is a possibility that they will change the shade of the viewing window by getting exposed to any of these lights or lights similar to them.  Manufacturers were aware of this slight complication so they added sensors that can differ welding arcs from sunlight and florescent lights.

Why is an Auto Darkening Welding Helmet is better than Other Helmets?

While welding, there is a constant need to look out for any possible mishaps and after a while it becomes tiresome to constantly move your helmet up and down to see clearly.  It is particularly hard for welders to remove their helmets constantly as they wear thick gloves which restricts the mobility of their fingers and hands. This can lead to accidents that can put you or someone working alongside you in the hospital. Judging by the above mentioned difficulties, Auto Darkening Welding Helmets are the best alternatives you can find for those outdated welding helmets that obstruct your view as well as make you uncomfortable.

Check: 3M SpeedglasWelding Helmet 9100

Why should you buy Auto Darkening Welding Helmets?

Following are a few reasons that can help you decide why Auto Darkening Welding Helmets use the best technology to help you weld efficiently.

To make you understand the worth and the efficiency of an Auto Darkening Auto Helmet, you just need to look at its features and how its Auto Darkening Filter works. It is equipped with the most advanced technology you can find in a protective gear in almost half the price you’ve spent on protective gear until now. They also reduce the possible dangers that you are subjected to while welding, as there won’t be a need to adjust your helmet constantly.

Auto Darkening Filter: A Revolutionary Technology

3M Speedglas Welding Helmet 9100 with Extra-Large Size Auto-Darkening Filter 9100XX- Shades 5, 8-13, Model 06-0100-30SW

Auto Darkening Filters are by far, one of the most advanced leaps in innovation that manufacturers of protective gears have made. This technology has simply made the use of welding helmets ten times easier than it was before.


Understanding how an Auto Darkening Welding Helmet works is not difficult as its name suggests. To use simpler words, this helmet works because of a collaboration among the Auto Darkening Filters, sensors, shade and the automatic technology.

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