1): Biomimetic design of fish gills filter (2): centrifugal dust, dust and gas separation (3): transparent dust cup, dust bag design, the ashes are not dirty hands (4): Washable HEPA filter efficiency, to avoid secondary pollution (5): Deep sterilization mites, health care (6): biomimetic design, with a unique filter technology gills (7): environmental design, multiple filters (8): key human design, the ashes are not dirty hands (9): Wheel outsourcing PVC material to prevent scratching the floor (10): motor with temperature protection (11): Power (W): 1000nom. 2000Wmax