(1) The document discusses pneumatic components for clean room specifications, including pneumatic cylinders, auxiliary components, sensors, air blow valves, air unit components, and directional switching valves. (2) It introduces CKD's clean component system for use in clean rooms, which realizes CKD's original clean concept by providing products that match the purity requested by users and prevent foreign matter from entering clean rooms. (3) The system features vacuum and exhaust treatment to purge dust, product inspection and packaging in an ESD-proof bag, and the ability to select components based on the target clean room's cleanliness level and other factors.