<b>How to Ensure Handheld Cordless Vacuum Good Suction? </b><br> 1: Every time after using the machine, empty the trash in the dust cup in time.<br>2: While emptying the trash, please clean your HEPA.<br>3: Note: HEPA must be cleaned frequently, this will ensure that your machine has better suction power. Failure to clean will cause garbage to block the ventilation openings, resulting in rapid attenuation of suction.<br><br>Power: 100W<br>Two Modes: 8KPA<br>Battery Capacity: 2200mAh<br>Charging Time: 4.5h<br>Use Time: 20min<br>Working Sound Level: ≤72dB<br>