Key Terms
- A primary protector is PPE that may be worn alone or with a secondary protector. These include safety lenses and goggles.
- A secondary protector is PPE that can only be worn with a primary protector, such as face shields.
- A filter lens protects against most visible, ultraviolet, and infrared rays.
- A shade number refers to the amount of darkness offered by a specific lens used to protect the eyes from the light emitted by various welding operations.
To learn more about Eye & Face Protection visit our Eye & Face Protection Online Training web page.
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