Because most of the ribbons in fireworks display tubes have anodic oxidation characteristics, they are carcinogens containing chemical elements with anodic oxidation characteristics, which are harmful to health. This depends mainly on quality, and it is definitely dangerous. Its principle is to fully mix combustible gas with the air in the barrel (there is oxygen in the air), and when there is a spark, it will produce deflagration, thus producing the sound of explosion.

Therefore, we must choose the ones with quality assurance, the operation should be operated by professionals and the place should be particular. Just like the famous salute, the price of their home is a bit expensive, but the quality is ok. I think online evaluation is ok. You can also Baidu them.