Firecracker salute is a kind of salute, because the sound is as coherent as traditional firecrackers, and the sound is similar to firecrackers. It can produce the explosion and lighting effect of real salute. But it will also cause pollution, not environmental protection and pollution-free

At present, there are many so-called "electronic salutes" on the market, all of which are ignited and exploded by electrons after gasoline or liquefied gas or other combustible gases are mixed with oxygen. This so-called "electronic salute" is called "electronic salute" only when it is ignited electronically.

In fact, the trade names of these guns are oil guns and air guns. This kind of gun, like gunpowder, explodes by chemical reaction, which requires flammable and explosive substances such as gasoline, gas, hydrogen and oxygen. It is not much safer than gunpowder (some cities have been banned by public security departments), and it also pollutes the environment.