With a Dreame vacuum, you can thoroughly and quickly make your house dust free and dirt free. Thanks to the smart Dreame techniques, you can easily clean. The Dreame Z20 and Z30 vacuums measure how much dust and crumbs you vacuum. The vacuum automatically adjusts the suction power to these measurements. That way, you always vacuum with the correct suction power. Dreame measures suction power in airwatts. The higher the airwatts, the higher the power of the vacuum. Keep the included included accessories in mind when buying the best Dreame vacuum for you. That way, you can adjust the vacuum to every vacuum job.