odel CV-1 CV-2 note single one side or double side Cleanliness Dust with particle diameter≥0.5μm within the area should ≤3.5 piece/liter(class 100 of FS209E) Average wind speed 0.3m/s~0.6 m/s Noise ≤62db(A) Vibration half speak value ≤3μm ≤4μm Illumination ≥300Lx Power Supply AV 220V±10% 50HZ±2HZ Maximum power 380W 680W Size of work area (W×D×H) 820×610×520mm 1200×530×520mm Size of outer (W×D×H) 980×715×1620mm 1360×715×1620mm Weight 146kg 200kg