The first-aid blanket is generally made of tin foil paper or aluminum film, which is divided into double-sided gold, double-sided silver and gold and silver. It has the functions of keeping warm, keeping out the cold and sunscreen. The two-color first aid blanket is gold on one side and silver on the other. When using, the gold side faces outward and the silver side is close to the body. The silver surface reflects most of the heat (thermal radiation) emitted by the human body to ensure that 90% of the body temperature is not lost. The golden face can effectively reflect sunlight and heat in a hot climate and keep the body cool.
When traveling, it's best to carry a first-aid blanket with you. Especially when traveling by car, the role of first aid talk is more prominent. In the face of bad weather or tourism accidents, the first-aid blanket plays a good role. However, we need to remind you that you must master the use method of the first-aid blanket so that you can use it freely at the key time.
The first aid blanket can be used repeatedly without damage. After each use, it should be maintained in time. Only in this way can the service life of the first-aid blanket be effectively prolonged. If the first-aid blanket has been damaged or can not play the role of first aid at all, it is necessary to replace the new first-aid blanket in time, so as to ensure your own safety.