This Xiaomi Mi Cordless Vacuum Cleaner is designed to provide a deep cleaning for your home. It has 100,000-revolutions-per-minute rate and 9 cyclones; it offers a great suction power that can filter dirt particles up to 0.3 microns in size and it also can vacuum up to 99.7% of sand and dust particles. The Mi Handheld Vacuum Cleaner uses an aerodynamic structure that uses a 9-cyclone engine, effectively separating dust particles as they pass through. This vacuum cleaner is light, convenient and powerful. The Mi Handheld Vacuum cleaner has a 30-minute battery life, which is equivalent to the deep cleaning of a 120-square-meter floor.