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Laser Classifications

Class 1

A Class 1 laser system is considered to be incapable of producing damaging radiation levels during normal operations. This system is also exempt from any control measures or other forms of surveillance. Although some Class 1 laser systems emit very weak, non-hazardous beams, most incorporate "embedded" higher-power lasers. These lasers can only be accessed if important safety features, such as interlocks, are defeated or deliberately bypassed.

Class 1M

A Class 1M laser system is also considered incapable of producing damaging radiation levels during normal operations unless the beam is viewed with an optical instrument, such as a telescope.

Knowledge Check Choose the best answer for the question.

3-2. Which type of laser is incapable of producing damaging radiation levels during normal operations?