... by the 3 stages of highly efficient and highly powerful filters.5 meters extended flexible hoses for easy operation and ... and highly powerful filters. The filtering efficiency is Grade 2 0.2mg/m3; Suction Adjustable; Industrial grade special vacuum pump, more powerful ... 1500W, Inverter Power:1500W, Input Flow Rate: 280m3/h, Max.Vacuum: 35kpa, Voltage: 220V~240V(50/60Hz), Weight:45KG, Drum Capacity ...