Eye protection, such as safety glasses, goggles, and face shields, with the EN 166:2001 rating are tested for basic requirements including optical quality, field of vision, and resistance to impacts, liquid splashes, dust, and optical radiation. This ensures the eyewear provides reliable protection against various common hazards, promoting clear vision and safety.

PPE stands for "personal protective equipment." PPE Category 2 refers to equipment that is more complex, and has a higher level of risk. Examples of PPE Category 2 include safety helmets, ear protection, and fall arrest equipment. In Europe, PPE Category 2 must meet certain safety standards set by the European Union, which means that it must be designed and manufactured to protect the user without causing harm. Companies that make or sell PPE must prove that it meets these standards. They also must have a quality management system in place and have to be audited regularly by a notified body.