What other issues should be considered when using a safety helmet?

A safety helmet must be used within its valid inspection period to be legal； The inner lining of the safety helmet must be in good condition; otherwise, the head is prone to injury under external impacts ； The safety helmet straps must be fastened properly, otherwise they are prone to coming loose.

The following points should be taken into consideration during use: 1. Before use, check whether the helmet has any cracks, signs of damage, uneven surfaces, or wear; verify that the lining is intact and in good condition. If there are any obvious defects that could affect its performance, the helmet should be discarded promptly to avoid compromising its protective capabilities. 2. Users must not remove or add accessories to the safety helmet arbitrarily, in order to avoid compromising its original protective capabilities. 3. Users cannot adjust the size of the inner lining at will, as this directly affects the protective capabilities of the safety helmet. In the event of an impact by falling objects, the helmet may come off due to improper fitting, or it may cause injury to the wearer as a result of the impact hitting the top of the helmet. 4. When in use, the wearer must wear the safety helmet properly and securely, ensuring it does not move; the chin strap should be fastened, and the straps around the head should be adjusted to prevent the helmet from falling off. 5. Do not make holes in the safety helmet privately, do not strike it casually, do not use it as a bench, and avoid actions that may affect its strength. 6. Safety helmets that have been subjected to an impact or tested should be discarded and cannot be used any longer. 7. Safety helmets should not be stored in environments contaminated by acids, alkalis, or chemical reagents, nor should they be placed in areas with high temperatures, exposure to sunlight, or high humidity, to prevent them from aging and deteriorating. 8. It is important to use safety helmets within their expiration date. Safety helmets made from plant branches have a validity period of 2 years, plastic safety helmets last for 2.5 years, while those made of fiberglass (including vinyl steel) and rubber have a validity period of 3.5 years. Safety helmets that have passed their expiration date should be discarded.