The BISSELL CrossWave Cordless Max is a revolutionary all-in-one, multi-surface cleaner that washes and vacuums floors simultaneously saving you time while exceeding the performance of traditional cleaning approaches. Its a multi-surface machine, meaning not only is it an excellent hard floor cleaner, it also cleans and refreshes area rugs. Delivering powerful vacuum performance it vacuums both dry and wet messes and also washes floors all at the same time! CrossWave Maxs twin tank technology isolates dirty water from the clean water and formula, so unlike mopping, only formula and clean water is applied to your floors.Once youre done cleaning, CrossWave Cordless Maxs self-cleaning cycle cleans the brush roll and machine internals, making for less clean-up after the cleaning!