Why should stickers or labels not be placed on a safety helmet?

Stickers or labels should not be placed on a safety helmet primarily because they may interfere with the helmet's integrity, performance, or visibility of safety ratings. Safety helmets are engineered to meet specific safety standards, and any modification to their surface can compromise the materials or the structure of the helmet. For instance, adhesives from stickers can degrade the helmet's shell, impacting its ability to withstand impacts or punctures. Additionally, labels can obscure important safety information and certifications that are critical for ensuring that the helmet meets regulatory safety guidelines. This diminishes the effectiveness of the helmet, which is designed to protect the wearer in hazardous environments. Understanding this is crucial for maintaining the safety and reliability of helmets in the workplace.