Peracetic acid (PAA) is a strong oxidizing disinfectant synthesized from acetic acid and hydrogen peroxide. It is widely used in disinfection and cleaning, especially in the medical, food and industrial fields. PAA is favored for its efficient sterilization and disinfection effects, as well as its environmentally friendly properties. It breaks down without leaving any residue and is environmentally friendly. As the demand for environmentally friendly disinfectants increases, PAA plays an increasingly important role in the disinfectant market, and its application and development trends are expected to continue to grow.