What safety procedures must be followed when operating a laser?

When operating a laser, it is essential to follow specific safety procedures to minimize the risk of injury and ensure a safe working environment. Using proper protective equipment and controlling access are critical components of effective laser safety protocols.

Proper protective equipment might include safety goggles or glasses that are specifically designed to filter out harmful laser wavelengths, thereby protecting the operator's eyes from potential damage. Additionally, controlling access involves restricting individuals who are not trained or authorized to be in the vicinity of the laser operation area. This ensures that only those who understand the risks and are equipped to work safely around lasers can enter the space, reducing the likelihood of accidents or exposure to hazardous conditions.

The other choices may touch on broad safety concepts or impractical limitations, but they do not encompass the comprehensive and specific measures required for laser safety. Thus, focusing on the use of protective gear and access control directly addresses the unique hazards associated with lasers, making it crucial for safe operation.