Lasers are classified by their manufacturers, according to a universal rating system. The following pages provide a brief summary of the classifications for high-risk lasers & the suggested control measures.
High-risk lasers
Class 3B
Class 3B laser products are medium-power laser-based devices. Direct ocular exposure to these beams is unsafe, although diffuse reflection might be safe under certain conditions. The beam presents a minor skin hazard, especially when focused.
Class 4
Class 4 laser products are high-power laser-based devices. Even diffuse reflection of these beams is hazardous. Class 4 lasers can cause skin burns. They also present a fire hazard.
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