Room to breathe. 5 Layered HEPA Filtration System. You spend ages ridding the dust from your floors, only for it to escape from your vacuum into the air. Not with this 5 Layered HEPA Filtration System. It includes an ultrafine dust filter that captures 99.999%* of micro dust, including 0.3~10µm** sized particles and allergens. Make the air in your home as hygienically clean as your floors.