1. Determine the types and quantities of personal protective equipment for occupational hazards according to the hazard degree and risk assessment results of the work;
2, according to personal physical characteristics and adaptability, choose the appropriate personal protective equipment for occupational hazards;
3. Ensure the effectiveness and correct use of personal protective equipment against occupational hazards, including training and supervision. These principles aim at protecting employees from occupational hazards to the greatest extent and ensuring their safety and health.