uv, activated carbon, negative anion, programmatic, remote control, photocatalyst, static elctro ... . Initial effect and middle effect filter.2. High-strength C-UV tube up to 15,000uw/square cm with leakage less ... fan error alarm.12. Automatic accumulated contamination alarmModels: Wall Hanging/Cabinet/Ceiling Mounted/Moveable. Dynamic UV Air Sterilizer ...