Certified Safety Professional Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the output power of a Class 3B laser?

Up to 300 mW

Up to 500 mW

The classification of lasers is based on their potential for causing harm, and Class 3B lasers specifically are defined within the safety standards established by organizations such as the American National Standards Institute (ANSI). A Class 3B laser is classified as having an output power between 5 mW and 500 mW. These lasers can produce significant hazards if viewed directly, as they can cause both eye injury and skin burns depending on the exposure duration and conditions.

When evaluating the output power of Class 3B lasers, it is important to note that while they can reach powers up to 500 mW, they do not exceed this threshold, as that would categorize them as Class 4 lasers, which have even greater risks associated with their use. Understanding this classification and the associated power limits is essential for professionals working with lasers, ensuring proper safety measures are employed to protect operators and bystanders alike.

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Greater than 500 mW

Less than 100 mW

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