For a vacuum cleaner that could win prizes for agility while still providing premium suction power to shift stubborn dirt, this appliance is an absolute winner. Benefiting from Dyson's Radial Cyclone™ technology, the Dyson Allergy Upright Blue Vacuum DC40ALLERGY lifts many common allergens from all floor surfaces, making it an ideal choice for allergy and asthma sufferers. The self-adjusting cleaner head can handle carpets or lino with equal efficiency, while Ball™ technology allows it to move easily around corners and into difficult spaces. Hygienic, one-touch emptying is an added bonus.- Radial Cyclone™ technology for a powerful clean- Ball™castors for easy movement and quick turning- Self-adjusting head for any floor surface- Hygienic one-touch bin emptying- Ideal for asthma and allergy sufferers- 2 year guarantee