Lasers classified as Class IV pose which level of hazard?

Class IV lasers are known for their high hazard potential, particularly concerning eye and skin exposure. This classification indicates that these lasers can cause severe injury or burns if proper precautions are not taken. Direct exposure to the beam of a Class IV laser can permanently damage the retina of the eye, and skin exposure can lead to serious burns, depending on the power output and wavelength of the laser.

Understanding the specific hazards associated with Class IV lasers is critical for ensuring safety in environments where they are used. It emphasizes the importance of protective equipment and safety protocols, such as wearing appropriate eyewear and implementing controlled access to areas where these lasers are operated.

The other options suggest lower levels of hazard that do not accurately reflect the significant risks posed by Class IV lasers in practical scenarios. Thus, the identification of Class IV lasers as presenting a high hazard aligns directly with safety terminology and practices in laser use.