Compared with traditional fireworks, fireworks have the characteristics of small smoke, low flame temperature and light smell. When they are set off, there are lights, fires and flaming flowers flying, which can produce bright fireworks and fireworks viewing effects, and will not explode, produce thermal residues and have low risk. Cold fireworks are cold smokeless fireworks made of metal powder with low ignition point in a certain proportion. Cold fireworks have a low ignition point, which is 60℃-80℃ and the outside temperature is 30℃-50℃, which is harmless to human body.

The quality of cold fireworks depends on two important factors. The first is raw materials. The raw materials used in cold fireworks range from tens of thousands of yuan to hundreds of thousands of yuan a ton. Some illegal producers make huge profits by using inferior raw materials. However, the high-quality cold fireworks are in the shape of silvery white flowers, with little slag and almost no residual substances, and the smell is light. The inferior cold fireworks are in the shape of red flowers, with more slag, and massive substances ejected, with heavy smell.