The correct head protection can prevent all sorts of head injuries from minor injuries to serious ones like brain injury or death. If falling objects are a risk, or electrical risks, then they need to wear head protection. The most used head protection is the hard hat, which is a hard-shelled hat made of plastic or something similar. They are lined with shock-absorbing material and provides ventilation. They need instructions to adjust and replace the lining and headband. Hard hats need to be cleaned and checked for cracks regularly. Wearers need to avoid using any sorts of chemicals that will harm the surface of the helmet. If not kept safe, then the heat and chemicals may affect the hardness and shock resistance of the helmet.
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