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Tinted Face Shields

The Bureau of Labor Statistics estimates that thousands of workers are blinded each year due to eye injuries. These same statistics showed that on average three out of five of these injured employees were not wearing the proper eye and face protection at the time of their injury. The majority of these injuries are caused by flying materials or particulates. However, some of these employees suffered injuries from performing tasks that exposed them to radiant energy, glare and intense light without proper eye and face protection. The required protection can be accomplished by properly using safety glasses or goggles in combination with tinted face shields. Tasks that require this type of protection include welding, torch-cutting, brazing, soldering, and laser work.

Tinted face shields are no different than any other piece of PPE (Personal Protective Equipment) in that certain requirements must be met when selecting and issuing them to employees. Employers must ensure employees know when this type of face shield is to be used, the hazards this type of shield will protect against, its limitations, how to properly wear them and proper maintenance. In other words, employers must be sure they have properly trained their employees in the use of tinted face shields prior to their use in the field. It is best to evaluate exposure during development of the site safety plan.

As with other eye and face protection, tinted face shields must meet the American National Standards Institute requirements. Face shields meeting these requirements will have ANSI Z87.1 clearly stamped on the shield.

So how much tint do I need? The amount of tint is specified by a shade number. The amount of shade needed is determined by several factors including the task producing the light, arc current, and the size of the electrode being used.

As a rule of thumb when welding, start with a shade that is too dark to see the weld zone, then go to a lighter shade which gives sufficient view of the weld zone without going below the minimum.  When a worker wears eyewear equipped with filter lenses under a welding helmet, the shade number of the lens in the helmet may be reduced. The combined shade numbers of the tinted helmet lens and tinted the eyewear can be added together. This number will then identify the combined level of protection provided. As previously stated, all protective eye and face devices must comply with ANSI Z87.1, Practice for Occupational and Educational Eye and Face