1.multi-cyclone, secondary cyclone filtration; 2.washable HEPA filters with 99.97% cleaning efficiency; 3.attractive features; with advanced exclusive true multi-cyclone filtration system, double dust cups with bigger capacity, secondary cyclone filtration structure, improved working and cleaning efficiency.washable HEPA filters with 99.97% cleaning efficiency, good for allergy people and asthmaticsmulti-cyclone, secondary cyclone filtration plus super high cleaning HEPA filters, enabling a highest cleaning efficiencysuper higher power up to 2000Wsuper bigger dust capacity up to 5 L max.motor thermal protector, automatically motor protection whilst overheating, ensuring motor  life useattractive spray color feature, displaying good-looking.automatic cord rewinder: 5 meterspower speed control, multi-choice freely on power applicationaccessories: long flexible hose, oval mini brush, crevice nozzle, metal telescopic tube, metal floor brush,