How often should helmets be replaced?

Helmets are critical safety equipment designed to protect the head during activities that present a risk of injury, such as cycling, construction work, or other high-impact sports. The proper replacement of helmets is essential for maintaining their protective capabilities. Manufacturers often provide specific guidelines based on testing and research regarding how long a helmet should last and when it should be replaced.

Replacing helmets according to these guidelines—usually based on a combination of the age of the helmet and any significant impacts—ensures that the helmet maintains its structural integrity and protective features. Major impacts can compromise the helmet's ability to absorb shock, regardless of whether any visible damage is present.

While other options suggest varying criteria for replacement—such as time frames or visible wear—relying solely on those factors may not ensure maximum safety. Over time, materials can degrade due to factors like UV exposure, temperature changes, and general wear. Thus, adhering to the manufacturer's recommendations, which account for both the age and the condition of the helmet, provides the best assurance that it is still fit for purpose in protecting against injuries.