Air purification is a comprehensive solution to provide various solutions to various environmental problems in the room, such as sterilization, dust removal, removal of harmful decoration residues and odors, improvement of living and office conditions, and improvement of physical and mental health. The color of the potassium permanganate ball is purple or pink. It utilizes the strong oxidizing property of potassium permanganate to oxidize and decompose the reducing harmful gas in the air, thereby purifying the air. High removal efficiency for harmful gases such as H2S, SO2, HCHO, etc. Specifications range from 1-12mm. Orderable production. The basic parameters are: AL2O3 ≥ 80%, bulk density ≥ 0.85g / mL, pore volume 0.42-0.45ml / g, particle size Ф 2-7mm and so on. Specific parameters can be customized.