Points to Remember Before Buying a Welding Helmet Welding is the process of joining metals by melting the parts and then using a filler to form a joint. Welding can be done with a gas flame or electric arc or ultrasound. Welding is an unsafe task. A Welding operator should protect himself while welding. He should wear certain safety equipments like protective clothes, welding helmets, gloves etc. A welding helmet can protect your eyes from ultraviolet and infrared rays. While buying a welding helmet you have to look into certain features: Always buy a welding helmet that is lightweight and comfortable to wear. If a welding operator is uncomfortable wearing a welding helmet it may lead to accidents. Welding shields must block ultraviolet and infrared rays to be effective. If an operator wears light weight helmet it can minimize strain on its neck and reduces fatigue. Auto darkening welding helmets have lenses that automatically darken when a welding arc is struck and returns to a light state when welding ceases, it allows the wearer to work without removing the helmet. Passive welding helmets are available in fiberglass, leather, plastic, thermoplastic, vulcanized fiber in various colors and helmet types. Solar power and battery life welding helmets: Auto darkening helmets generally have non-replaceable battery and solar assist panel. While using this helmet for the first time you should charge it for sometime in front of direct sunlight. A better investment is a helmet powered by a replaceable battery and solar assist panel that enables you to start welding right away. Source: http://everlastgenerators.com/wordpress/welders/points-toremember-before-buying-a-welding-helmet/