Standard welding goggles

Welding goggles consist of mirror bracket, light filter and protective plates. There are three requirements about standard welding goggles.

The glasses will not fall off even be affected by heat.
The parts touching face should be soft and rounded.
It will not cause anaphylactoid reaction.

Light filter should be smooth without any scratch, bubble and other flaws, because these flaws would influence protection of eyes, then decrease work efficiency. As welding and high temperature cutting happened in extreme environment, the safety goggles are different from common glasses. They must be intact even in temperature 60 centigrade.

Glasses of safety goggles should be strong to prevent fly materials. Many countries use steel ball that fall freely from 1 meter to check the intensity.