Description states Hepa filter eliminates 99.97% of dust. Well the hose and attachments attracted most of the dust to the outside like magnets. The canister became very hot around the Hepa filter, rear end and handle of the unit. Suction was not great and did not work well on carpet, picking up only surface dirt.  Floor attachment did not roll well over carpet. The canister, hose and attachments were rather cheaply made.  I don't think this unit would last very long before the plastic parts start cracking. I was very disappointed and returned it. Gave it 2 stars because it is light weight and did appear to work well on bare floor.