Class 3b lasers require what type of sign?

Class 3b lasers are considered hazardous and pose a significant risk of eye injury, as well as potential skin damage upon direct exposure. Therefore, the type of sign required to indicate the presence of such lasers is a warning sign.

A warning sign provides clear and immediate recognition of the potential danger associated with the operation or presence of these lasers. It is important for individuals to understand that they are entering an area where safety precautions must be taken seriously due to the risk of exposure to high levels of laser radiation.

Other types of signs, such as caution signs, are generally used for lower-risk situations, while do not enter signs pertain to restricted areas and may not specifically convey the nature of the laser's hazard. Age restriction signs, on the other hand, are not related to laser safety but rather to access limitations based on the age of the individual. By using warning signs for Class 3b lasers, facilities ensure that individuals are adequately informed and can take necessary precautions to protect themselves.