Helmet manufacturer What is the identification method of helmet?

1. The shell shall be made of hard, durable materials that can absorb more impact energy; The buffer layer shall be made of materials that can absorb more impact energy, are non-toxic and harmless, and can cover the head protection area; The lining pad is made of sweat absorbing and breathable materials; The wearing device must ensure that the helmet is firmly in contact with the head; The goggles are made of materials that meet the light transmission performance and impact force, and the light transmission rate is not less than 85%.

2. The weight of helmet shall not exceed 1.6kg for full helmet and 1.3kg for half helmet. The left and right horizontal vision shall not be less than 105 °, and the upper vision shall not be less than 7 °.

3. The helmet must have fixed signs. The mark shall include the following contents: product name, manufacturer name and address, trademark, product type, product model, specification, production date, product batch number or serial number.

4. Be sure to choose a helmet according to your head circumference.

5. Stop using helmets after major impact accidents.