Laser classification is the systematic categorization of lasers based on their potential hazard levels and operational characteristics. This academic concept investigates the relationship between specific laser parameters (such as power, energy, wavelength, and pulse duration) and the risk they pose to human health, particularly ocular and dermal tissues. Key characteristics involve defining distinct hazard classes with associated safety requirements and control measures, and its significance lies in establishing international standards (e.g., IEC 60825) essential for the safe design, manufacture, and use of lasers across diverse applications in science, industry, medicine, and consumer products.