Which of the following situations would necessitate replacing a safety helmet?

A safety helmet is designed to protect the wearer from head injuries caused by falling objects, impacts, or falls. Its structural integrity is crucial for ensuring maximum protection. When a helmet displays signs of cracks, dents, or any visible damage, it indicates that the protective qualities may be compromised. Damage can weaken the material, making the helmet less effective in absorbing impacts and thwarting injury.

Regular inspections for physical damage are essential. Any noticeable imperfections could signify that the helmet has experienced more abuse than it can withstand, thus rendering it unreliable when it is needed most. Therefore, replacing a helmet that shows visible damage is critical for maintaining safety standards.

While cleanliness, color fading, and fit are important factors in ensuring comfort and hygiene, they do not significantly diminish the helmet's protective capability. A dirty helmet can be cleaned, faded color does not affect performance, and a slightly off fit may not always compromise safety, as long as it remains secure on the head. However, physical damage directly impacts its ability to perform as intended, making it the clear reason to replace a helmet.