Which of the following is NOT a characteristic of Class 4 lasers?

Class 4 lasers are highly powerful and pose significant safety risks. One of their defining characteristics is that they can indeed cause serious biological damage, including severe eye injuries and skin burns, when proper precautions are not followed.

Because of the significant hazards associated with Class 4 lasers, special precautionary measures are essential. These measures may include the use of protective eyewear, barriers, and restricted access areas to prevent accidental exposure. The idea that Class 4 lasers require no special precautionary measures is fundamentally incorrect, as the potential for harm is substantial, necessitating rigorous safety protocols.

In contrast, Class 4 lasers are known for their high power and the variability in their wavelengths, which allows for a wide range of applications but also contributes to their dangerous nature. This understanding reinforces why it’s critical to implement safety measures rather than overlook them.