We recommend selecting helmets according to the safety requirements of the American National Standards Institute (ANSI). Though it will be a bit costly, it will serve you for all welding processes. Whereas, if you own a workshop or welding yard and work with different welding processes, it is better to buy the variable shade helmet. You can choose the former one if you are a professional welder of a particular welding process. In contrast, others have customized lenses with variable shade numbers.
Some helmets have a filter lens with a fixed shade. The larger the shade number, the darker the filter lens.
While the shades from 9 to 13 are mainly used for different welding processes. The earlier numbers from 4 to 8 are useful in grinding and cutting processes. Welding helmet shades numbers vary from 4 to 13. Above all, keep in mind that before choosing the shade number, welding helmets should meet ANSI standards in the USA and CSA in Canada.
Welding helmets come in a variety of shades according to diverse welding processes. Therefore, it will allow fewer radiations to pass through the filter lens and reach one’s eyes. It means that the helmet with a higher shade number will be darker. Usually, welding helmets have their characteristic shade number, which represents the allowable intensity of the radiation. The filter lenses on the welding helmets differentiate them from ordinary helmets. Plus, helmets protect your eyes from harmful radiations that are produced because of shielding gas’s ionization. Welding helmets also provide a shield from sparks and sharp tiny particles that may penetrate your skin.
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