As far as we all known that welding process is a little dangerous.The tools we often used include Cutting Torch, we will need welding mask and Welding Helmet.Therefore, how to choose the shade number of welding mask.
Some people think that the rate of shading is related to the degree of eye protection, so the larger the value, the better protection of the eyes. But in fact the light-control mask can filter out most of the harmful ultraviolet and infrared rays, so the choice of sunshade is only a matter of comfort and discomfort. The value of the sunshade only indicates the special the light shading level Under shading. Welders should choose the most comfortable way and with good visibility under certain application conditions. Choose a shading number so that you can clearly see the starting point to help you improve the welding level.