3. Ozone sterilization is a bacteriostatic method. It is completely sterilized, has no residue, and has a broad spectrum of sterilization. It can kill bacterial propagules and spores, viruses, fungi, etc., and can destroy botulinum toxin. In addition, O3 also has a strong killing effect on mold. O3 is quickly decomposed into oxygen or a single oxygen atom due to its poor stability. A single oxygen atom can combine itself into oxygen molecules without any toxic residues. Therefore, O3 is a non-polluting disinfectant. O3 is a gas that can quickly diffuse into the entire sterilization space, and there is no dead angle for sterilization. The traditional sterilization and disinfection methods, whether UV or chemical fumigation, have incomplete, dead angles, heavy workload, residual pollution or odor, and may damage human health. If UV disinfection is used, there is no effect in places where light is not exposed, and there are disadvantages such as decline, weak penetration, and short service life. Chemical fumigation methods also have shortcomings, such as bacteria and viruses that are highly resistant to medicinal properties, and the bactericidal effect is not obvious.