A clean booth, also known as a dust-free shed, is an air purification device used in areas within an operating area where high-level purification is required. It utilizes a frame made of industrial aluminum, stainless steel, or plastic-sprayed iron with ISO 14644-1 standards. Surrounded by anti-static curtains or tempered glass, it features a HEPA Fan Filter Unit air supply system. Its interior purification levels can reach Class 100-10000. It is ideal for electronics manufacturing, pharmaceutical cleanrooms, and precision laboratories.