Hoover This product has floor sense technology - utilizes micro-sensors that detect changing floor types and automatically adjust brush roll speed for the best results on any floor type. Wind tunnel surge captures dirt, dust, and pet hair. It allows you to customize your cleaning experience and maintain your vacuum for optimal performance. Sealed allergen system, captures and contains 99% of dust and allergens and prevents them from being released back into your home. Tested for paws and claws, the new react line is especially effective in homes with pets. Every vacuum with the tested for paws and claws seal meets high standards for optimal pet hair removal on floors and above.