Large debris or microscopic dust? Many vacuum cleaners suck up one or the other, leaving either crevices full of dust or piles of cereal snow ploughed to the wall. Dyson’s latest cordless machine reinvents the way you tackle dirt, big and small, ensuring particles of all sizes are sucked up and flung into the bin. HEPA Filtration to capture allergens and expel cleaner air. Removes 99.97% of particles as small as 0.3 microns.