The first note is to buy helmets that meet national standards. On the market, helmets are divided into "full helmets", "three-quarters helmets", "face-opening helmets" and "half helmets". No matter what helmet you choose, you should see the helmet production standards. Gudook helmet is a protective helmet that complies with safety regulations. In addition, regular helmets have regular manufacturers and production addresses.
The second note is to choose the right size of helmet. Drivers should choose a helmet that is about 0.8 inch (2 cm) larger than their head circumference. After putting on the helmet, it can be turned right and left without any pain on the head. It is a suitable helmet. If the helmet can be shaken easily, it is too big.
The third note is to fasten the belt. When putting on the helmet strap, try to fit the chin as much as possible, and it should not be too tight. It is better to put two fingers in.
The fourth note is to be optimistic about the "validity period" of the helmet. Each helmet has a service life, generally 2 to 3 years. If it exceeds the service life, please replace it in time. As long as the safety helmet has withstood an impact, it is recommended not to continue using it even if the outer shell is not deformed.
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